Answer:
B. Paternity
Explanation:
Edge 2020
The career that combines DNA technology and forensics is paternity testing. The correct option is B.
What is paternity testing?DNA testing examines an individual's DNA banding patterns to determine the identity or mutations of a specific gene.
Paternity testing is a type of DNA testing that is used to determine paternity and the true nature of a relationship.
The lab compares tissue samples from the mother, the child, and the man to determine what unique characteristics known as genetic markers the child shares with the mother and the man who may be the father.
The chromosomes that determine the gender of the baby (X and Y chromosomes). The mother's egg typically contributes an X chromosome, while the father's sperm contributes either an X or a Y chromosome.
These tests are extremely accurate in determining whether a man is the biological father of a child.
Thus, the correct option is B.
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Which structure in a cell makes proteins using coded instructions that come from the nucleus?
Answer:
Ribosomes
Explanation:
Ribosomes are small particles of RNA and protein found throughout the cytoplasm. Proteins are assembled on ribosomes. The nucleus gives coded instructions to the ribosomes, so they know what proteins to build.
Why is uranium lead dating better than radiocarbon dating?
Answer:
Uranium-238 has a much longer half-life of 4.5 billion years versus Carbon-14's 5,730 years.
Explanation:
Radioactive Carbon-14 or [tex]^{14}C[/tex] is typically formed in the upper atmosphere. In plants, it gets incorporated into organic molecules through photosynthesis, and this material is ingested by consumers.
It is used for the process of radiocarbon dating of fossils and formations. Radioactive isotope dating is an effective means of identification due to the unstable nature of the isotope used and the predictable rate of decay.
Over time they decay to give off an electron, in an effort to become a more stable element. For instance, [tex]^{14}C[/tex] has a relatively short half-life and half the in a sample becomes Nitrogen over a few thousand years (5,730 years).
However, for older samples, other isotopes are used because their long half-life may range between a million to billions of years. Uranium-238, with a half-life of 4.5 billion years is often used in geochronology; uranium-lead dating is suitable for older specimens.
what happens during telophase 2 select three options PLEASE HELPPP
Answer: Nuclear membrane forms,Cytoplasm starts to divide,Spindle fibers disappear.
Explanation:
Explain how an algal bloom affects the oxygen levels in a lake ecosystem.
Answer:
Algal bloom causes by eutrophication (when excess nutrients run into a body of water). Eutrophication provides nutrients for algal bloom. As a result, there is an increasing in algal bloom population. Increasing in algal bloom population can block the light that is needed by other organisms. This could impact these organisms survival. Furthermore, when these algae die, their body sink into the bottom of the sea, which consider as nutrients for bacteria, increasing bacteria population. This means that the respiration rate by bacteria is increasing as well. When bacteria respire, they need to absorb oxygen. Over time, these oxygen level will eventually decrease and later form a dead zone.
Explanation:
Hope this helps!
What ecological service do the wetland provide?
Answer:
They improve water quality, prevent soil erosion and land mass loss, protect coastlines, store away carbon, and provide habitats for a wide range of diverse plant and animal communities.
Explanation:
Wetlands are regions or areas of or periodically water-covered soil. These are classified as swamps, marshes, bogs, fens and shallow water. Others, that contain partially decomposed organic matter are known as peatlands.
These are diverse and essential regions found across several biospheres. They improve water quality, prevent soil erosion and land mass loss, protect coastlines, store away carbon, and provide habitats for a wide range of diverse plant and animal communities. Additionally, wetlands remove excess nutrients from runoff, preventing pollution of waterways.
Answer:
They improve water quality, prevent soil erosion and land mass loss, protect coastlines, store away carbon, and provide habitats for a wide range of diverse plant and animal communities.
Explanation:
look up
would someone be incorrect if they said that all the apples in the entire world are organic?
Answer:
yes cuase some apples selling in the market is prone to pestisides
Match the following.
1 . phylum The two-name system of naming living things used in classification
2 . class All life on earth
3 . kingdom A taxonomic category containing a group of similar orders
4 . International Code of Nomenclature In plant classification, a grouping of similar classes
5 . order An elaborate set of rules for naming organisms
6 . binomial nomenclature The largest taxonomic category
7 . taxon A taxonomic category containing a group of similar families
8 . division In classification (other than plant), a grouping of similar classes
9 . biosphere The categories used in classifying plants and animals
Answer:
Please find the correctly matched terms with their definition below:
Explanation:
1. Binomial nomenclature: As the name implies i.e. Binomial meaning"two", binomial nomenclature is the two-name system of naming living things used in classification.
2. Biosphere: Biosphere refers to all life on Earth including plants, animals, microbes etc.
3. Class: Class is one of the seven levels of classification, which is a taxonomic category containing a group of similar orders.
4. Phylum: Phylum is also a level of classification used majorly for classifying plants. In plant classification, It is a group of similar classes.
5. International Code of Nomenclature: Abbreviated as IUCN, it is an elaborate set of rules for naming organisms in taxonomy.
6. Kingdom: Kingdom is the least specific taxon. Kingdom represents the largest taxonomic category containing most organisms.
7. Order: Another level of classification that describes a taxonomic category containing a group of similar families.
8. Division: Division is a taxon used instead of phylum when a plant is not involved. In classification (other than plant), phylum is a grouping of similar classes.
9. Taxon: Taxon refers to the categories used in classifying plants and animals.
Answer:
1. Species refers to the biological term that signifies the smallest unit or the basic unit of classification. Thus, 1 can be correctly matched with species. 2. The Arthropods refers to the species that exhibits an exoskeleton, paired jointed legs and segmented body. Thus, 2 can be correctly matched with Arthropods and animal characteristics. 3. The largest phylum of animals is Arthropods. Thus, 3 can also be correctly matched with Arthropod. 4. The Tracheophyta signifies towards the green plants that exhibit conductive tissues for mediating nutrients and water through them. Thus, 4 can be correctly matched with Tracheophyta. 5. Taxonomy refers to the branch of science that deals with the classification of species. Thus, 5 can be correctly matched with taxonomy. 6. The order is considered as a group of families. Thus, 6 can be correctly matched with order. 7. Tracheophyta is considered as the largest division of plants. Thus, 7 can be correctly matched with Tracheophyta.
Explanation:
PLEASE HELP!!!
"An advantage of ______ reproduction is that a genetic disorder in a parent might not affect The offspring
Answer:
An advantage of sexual reproduction is that a genetic disorder in a parent might not affect the offspring.
Explanation:
got 100
Answer:
An advantage of sexual reproduction is that a genetic disorder in a parent might not affect the offspring.
Explanation:
Since there are only two types of reproduction, sexual and asexual, andin asexual reproduction, the offspring gets all the qualities of the parent, we can determine that the offspring might not get the genetic disorder from the parent IF it is sexual. That is because there are 2 parents, hence giving a 50-50 chance to get it.
A researcher is studying a cornfield that has been recently abandoned by a farmer. By the end of one
year, wild grasses begin to grow in the field.
Identify whether this is an example of primary succession or secondary succession.
Answer:
ummm
Explanation:
In tomatoes, red fruit color is dominant, R, to yellow fruit color, r. A farmer has tomatoes that produce either red or yellow tomatoes. He has signed a contract with a large seed company to provide pure, RR, and pure yellow seeds, rr. They do not want any hybrids. How could the farmer tell if his tomatoes are pure or hybrid?
Answer:
He should perform a "testcross" by crossing the tomatoes in question with yellow-fruited plants.
If they are pure, all offpsring will be Red: RR x rr = all Rr
If they are hybrids (heterozygous), half the offspring will have yellow fruits: Rr x rr = 1:1 (red to yellow)
Explanation:
What is another example of a resource that has limited supply
Answer:
Fossil fuels such as oil, natural gas, and coal are examples of nonrenewable resources. Humans constantly draw on the reserves of these substances while the formation of new supplies takes eons.
Explanation:
The resources that we value—time, money, labor, tools, land, and raw materials—exist in limited supply. There are simply never enough resources to meet all our needs and desires.
hope this helps :)
Describe how oxygen gas (O2) is produced during photosynthesis. Include the specific structures in the plant where the reaction occurs.
What is a compound in rock biology?
Answer:
Most rocks contain silicate minerals, compounds that include silicon oxide tetrahedra in their crystal lattice, and account for about one-third of all known ... "Evolutionary Aspects of Biological Involvement in the Cycling of Silica".
What type of cells are blood cells? Click all that apply.
Answer:
The muscles cells and their body cell
PLEASE HELPPPP
Conservationists often work to support the health of animal
species and protect them from threats. Why might it be
important for conservationists to understand the environmental
conditions and ecosystems at different points along a migrating
bird's path? Use evidence from both the text and video to support
your answer.
Answer:
because of we dont take good care of our. enviroment and the heart by clean it up we are going to star with out any animal
Explanation:
it is very important to take care of all the rings that are around us
Groups Of similar organisms within a species are called
From smallest to largest, the levels are species, genus, family, order, class, phylum, and kingdom. Each of the ranking levels is called a taxon. Just as a genus is a group of similar species, a family is a group of similar genera. An order is a group of similar families.
Hope this helps!
Which of the following is a product of the photosynthesis reaction? Please help
Explanation:
Where is option? Show option
Number of chromosomes?
Sex of individual?
Normal? Yes or no.
If abnormal, what chromosome pair?
This is the picture of karyotype. Karyotype is a collection of a Individuals chromosome. Like pairs are separately represented from the unlike pairs, It is generally used to study the chromosomes and the abnormalities found in the number of chromosomes.
_____________________________________CHROMOSOMAL NUMBER 18:Every chromosomal pair seems fine, except the chromosomal pair number 18. Because as you ca see that it has 3 chromosomes instead of 2. This impairment in the chromosomal pair is called trisomy as it has 3 chromosomes.
_____________________________________TRISOMY 18:Trisomy 18 is also called Edwards syndrome. It is a chromosomal condition associated with abnormalities in more than one part of the body. Individuals with trisomy 18 often mature slowly than normal fetus before birth and they have lower weight at the time of birth as compared to the other children.
_____________________________________Best Regards!'Borz'There are 23 pairs of chromosomes in total, and the individual is male because it has one X and two Y chromosomes, but this individual is abnormal because of the trisomy in the 18th chromosome, as the 18th pair has three chromosomes.
What is the chromosomal abnormality?The chromosomal abnormality is caused by the mutation in the chromosome number and includes either the deletion of the chromosome or the addition of the chromosome in a homologous pair. The chromosomal abnormality has many negative consequences as well, some extra copies in the sex chromosome pair cause infertility, etc., while deletion causes life-threatening conditions.
Hence, there are 23 pairs of chromosomes in total, and the individual is male because it has one X and two Y chromosomes, but this individual is abnormal because of the trisomy in the 18th chromosome, as the 18th pair has three chromosomes.
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Translation occurs in the of a eukaryotic cell.
Scientific evidence shows that modern dogs, wolves, and foxes all have a common ancestor. Further evidence shows that dogs are more closely related to wolves than to fixes. Which of the following observations provides the BEST evidence that dogs are more closely related to wolves than to foxes? *
A. The diets of dogs and wolves are more similar that the diets of dogs and foxes.
B. The lifespans of dogs and wolves are more similar than the lifespans of dogs and foxes.
C. The genetic sequences (DNA) of dogs and wolves are more similar than the genetic sequences of dogs and foxes.
D. The body sizes of dogs and wolves are more similar than the body sizes of dogs and foxes.
The observation that provides the best evidence that dogs are more related to wolves than to foxes is the DNA sequence of dogs and wolves being more similar than that of dogs and foxes.
The DNA is a molecule that stores the genetic information of organisms. Thus, closely related organisms have similar information on their DNA, usually indicated by similar nucleotide sequences.
Therefore, if dogs and wolves are more closely related in ancestry than dogs and foxes, the DNA sequence of dogs and wolves will be more similar than the DNA sequence of dogs and foxes.
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Help me please I need help
Answer:
D
Explanation:
Answer:
DNA
Explanation:
Common knowledge
What are cells made of?
Answer:
All cells are made from the same major classes of organic molecules: nucleic acids, proteins, carbohydrates, and lipids.
It includes features from all cell types. A cell consists of three parts: the cell membrane, the nucleus, and, between the two, the cytoplasm. Within the cytoplasm lie intricate arrangements of fine fibers and hundreds or even thousands of miniscule but distinct structures called organelles.
Explanation:
put in your own words
Cells are made up of macromolecules like proteins, carbohydrates, lipids, and nucleic acids.
What are cells?The cell is the smallest unit of life. They make the living being's structure and all the functions are performed by cells. It is the smallest unit of living matter and is made of proteins, lipids, and nucleic acids.
The cell membrane, the nucleus, and the cytoplasm are the three primary components of a cell. The substances that enter and leave the cell are governed by the cell membrane, which encloses the cell.
The majority of the cell's DNA is located in the nucleus, a structure inside the cell that houses the nucleolus. The majority of RNA is also produced there.
Thus, macromolecules like proteins, carbohydrates, lipids, and nucleic acids make up cells.
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Provide one reason that leads psychologists to believe personality changes and one reason that leads psychologists to believe personality remains stable.
Answer:
Recent studies have shown that personality seems to be particularly malleable in children and adolescents; however individual differences in personality traits (such as, for example, temperament) are generally stable during adulthood .
Explanation:
Recent studies in psychology research suggest that personality characteristics such as, for example, anger, suspiciousness, rancor, etc, are malleable and may change over time in children and adolescents. Moreover, personality has shown to be quite stable during adulthood, regardless if the person is a woman or a man. For example, if a person was reserved and timid in high school, these traits remain relatively stable during adulthood. In general, with the age people becomes more emotionally stable, conscientious, and control better their impulses.
Answer:
Psychological research indicates that personality seems to be malleable or changing as one experiences child and adolescent development, but aspects of personality, such as one’s temperament and emotionality, seem to remain stable into adulthood.
Explanation:
Sample response on edge2021
Label the effect depicted in the picture below. How does the picture connect to the definition?
(amoeba sisters, video recap, genetic drift. Question 3)
Answer:
Founder effect
Explanation:
The seeds from a dandelion that is depicted in the picture arrive at a new place where they can grow and this happens by random chance. By the wind blowing in the right direction, these seeds found their way onto some field where new plants sprouted to life. This is an example of the founder effect.
what is the advanced character of eukaryotic nucleus?
Answer:
nucleus, membrane-bound organelles, and rod-shaped chromosomes. The nucleus houses the cell's DNA and directs the synthesis of proteins and ribosomes. hope this helps :)
Explanation:
Which of the following statements is true?
Cloning creates a genetically identical offspring.
Dog and horse breeds are the result of years of recombinant DNA breeding.
Recombinant DNA injects genes from bacteria into an organism.
Selective breeding can be used to create pesticides and cancer drugs.
Answer: I feel like its A but I don't know for sure
Explanation: I'm dumb
Answer:
A. cloning creates genetically identical offspring.
Explanation:
graded correct.
The prior unit curriculum was worded in a way a to make the word "offspring" within this question ambiguous. (adjective . open to more than one interpretation; having a double meaning. or unclear or inexact because a choice between alternatives has not been made.)
Which is why most students are here, because curriculum & question wording are often tricky.
Which of the following statements is true regarding electromagnetism?
All wires are electromagnetic.
Only wires carrying current are electromagnetic.
Only iron wires are electromagnetic.
Only copper wires are electromagnetic.
Answer:
Only iron wires are electromagnetic.
How does gravity affect the shape of an object's orbit around the sun?
Answer:
it effects the the sun bc all planets need snlight and gravity is making it rotate
Explanation:
Which statement illustrates bias in scientific research?(1 point)
A. A microbiologist publishes data funded by the National Institutes of Health that does not support their original hypothesis.
B. A botanist publishes data about plant growth that does not support their original hypothesis and is replicable.
C. An ecologist publishes data funded by a construction company which supports their original hypothesis that an endangered animal's territory is not endangered.
D. A zoologist publishes incomplete data on sloths which supports their original hypothesis and notes that more research is required.
Answer:
D
Explanation:
The statement that illustrates bias in scientific research is an ecologist publishes data funded by a construction company that supports their original hypothesis that endangered animal's territory is not endangered (option C)
In scientific research, bias can occur when the results or processes are manipulated on purpose. This usually occurs if:
The researcher wants the hypothesis to match the resultsThe researcher or sponsor has an economic interestScientific research occurs in situation B because it is convenient for the construction company to show that endangered animal's territory is not endangered as this would allow the company to build in certain areas and therefore, they are likely to manipulate the results of this research.
According to this, option B shows scientific bias. On the other hand, other options do not show bias because in these the results do not seem to be manipulated.
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Define concentration gradient.
Answer:
A concentration gradient occurs when the concentration of particles is higher in one area than another. In passive transport, particles will diffuse down a concentration gradient, from areas of higher concentration to areas of lower concentration, until they are evenly spaced.
Explanation:
Hope this helps c: