Answer:
1. What is the relationship between chromosomes and DNA? The chromosome is a molecule formed by a chain of DNA associated with proteins. Together, they form a group of molecules directly responsible for heredity.
2. What is heredity? It is the biological process where the genes present in a DNA are transmitted by parents to their children, through the division of gametes. These genes carry the codes that form the genotypic and phenotypic characteristics, which allows a similarity between parents and children to occur.
3. What is the role of proteins associated with the DNA molecule that makes up the gene? Proteins are responsible for keeping the DNA line tightly compressed, maintaining the chromosome structure. In addition, they control the activities of the genes present in this DNA molecule, being essential in maintaining heredity.
4. How do chromosomes participate in gene transmission? As mentioned above, genes are part of DNA and DNA is the molecule that makes up chromosomes, in this case, chromosomes are molecules loaded with genes. In the human body, cells have 46 pairs of chromosomes, with the exception of gametes that have half that number. During the reproductive process, the gametes (reproductive cells) divide and produce a new being. The mother's gametes unite with the father's gametes to form a new being. Each gamete has 23 chromosomes, which contain the genes responsible for transmitting the characteristics.
Explanation:
This is what I used. :)
Which chamber of the heart receives blood back from the body that's low in oxygen
Answer:
superior vena cava
Explanation:
Oxygen-poor blood returns from the body to the heart through the superior vena cava (SVC) and inferior vena cava (IVC), the two main veins that bring blood back to the heart. The oxygen-poor blood enters the right atrium (RA), or the right upper chamber of the heart.
Describe the way convection works and how it might work within the earth? -geology question
Answer:
Magma in the Earth's mantle moves in convection currents. The hot core heats the material above it, causing it to rise toward the crust, where it cools. The heat comes from the intense pressure on the rock, combined with the energy released from natural radioactive decay of elements.
Explanation:
Which information can be determined using half-life?
Answer : In radioactive decay, the half-life is the length of time after which there is a 50% chance that an atom will have undergone nuclear decay. It varies depending on the atom type and isotope, and is usually determined experimentally.
hope it will help you
Answer:d
Explanation:
I did the quiz
2. How are the atmosphere, hydrosphere, and lithosphere related in the biosphere?
Answer:
These spheres are closely connected. For example, many birds (biosphere) fly through the air (atmosphere), while water (hydrosphere) often flows through the soil (lithosphere). In fact, the spheres are so closely connected that a change in one sphere often results in a change in one or more of the other spheres.
Explanation:
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7. China was the largest emitter of greenhouse gases in 2008. TRUE or FALSE:
Answer:
True
Explanation:
Googled It
...............
Answer:
true
Explanation:
What is the answer to this please help
Answer:
C The correct sequence of the transfer of information in most organisms is DNA to RNA to protein.
Explanation:
Gene expression involves the flow of information from DNA molecules to the formation of proteins. Information first flows from DNA molecules to RNA through a process called transcription. Transcription is the first step of gene expression in which an RNA especially the mRNA is synthesized from a DNA molecule by RNA polymerase enzyme. Then the synthesized mRNA is taken to the cytoplasm where it undergoes the translation process to form proteins.
Carbon's valence is _____.
Answer:
Carbon's valence is ±4.
Explanation:
Valency corresponds to the group;
Group 1 has valency +1
Group 2 has valency +2
Group 3 has valency +3
Group 4 has valency ±4
Group 5 has valency -3
Group 6 has valency -2
Group 7 has valency -1
Group 8 has valency 0
The valency refers to how many bonds an atom will make in forming a molecule/compound;
This is also referred to as the combining power of an atom.
5. The image above is an example of which boundary?
a. Transform boundary
b. Convergent boundary
Divergent boundary
d. All of the above
Answer:
Divergent
Explanation:
Answer:
Im smart so the answer is "blah blah blah" saying the correct right answer
Explanation:
What 2 molecules can be used to determine blood type?
Red blood cell antigens determine your blood group
Answer: The antigens expressed on the red blood cell determine an individual's blood group. The main two blood groups are called ABO (with blood types A, B, AB, and O) and Rh (with Rh D-positive or Rh D-negative blood types).
A scientific idea that is supported by a great deal of evidence, but it still has unanswered questions is called what
Answer:
Hypothesis
Explanation:
Why is meiosis important in maintaining genetic diversity?
Question 6 options:
A Meiosis creates diversity by cutting each chromosome exactly in half.
B The two different chromosomes of the organism producing the sex cell (egg or sperm) are mixed up during crossover, creating a new combination of alleles.
C It creates sex cells (eggs or sperm) that have exactly the same alleles (version of a gene) as the parents.
D The chromosomes in meiosis are copied so they are exactly the same as the organism producing the gamete, except they have just one copy.
Answer:
We now know that meiosis is the process of chromosomal reduction which allows the production of haploid germ cells necessary for sexual reproduction. Meiosis is furthermore important for its role in enabling genetic diversity and facilitating the repair of genetic defects through recombination.
Explanation:
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Meiosis is a specialized form of a cell division in which number of chromosomes is reduced to half. The reduction in chromosome number is achieved by one round of DNA replication and two rounds of chromosome segregation.
Meiosis produces genetic variation by the process of recombination.Recombination occurs when two molecules of DNA exchange pieces of their genetic material. The process of recombination occurs during the prophase stage of meiosis I. In meiosis, crossing over occurs between the non-sister chromatids in a homologous pair (one from each parent) of chromosomes.The correct answer is option B. The two different chromosomes of the organism producing the sex cell (egg or sperm) are mixed up during crossover, creating a new combination of alleles.
Other options-
A. Meiosis creates diversity by cutting each chromosome exactly in half - incorrect .In meiosis the chromosome number is reduced to half.
C. It creates sex cells (egg or sperm) that have exactly the same alleles (version of a gene) as the parents-incorrect. The sex cells produced are not genetically identical to the parent cell.
D. The chromosome in meiosis are copied so they are exactly the same as the organism producing the gamete, except they have just one copy-incorrect. In meiosis the chromosomes are not exactly copied.
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Question 4 of 10
Which is the smallest division of geologic time?
O A. Eon
O B. Period
O C. Era
O D. Epoch
Answer: Epoch
Explanation: An epoch is the smallest unit of time on the scale, but still encompasses a period of millions of years. Chronologically, epochs are grouped together into larger units called periods. Periods are combined to make a subdivision called an era. An eon is the largest division of geological time.
The smallest division of geologic time is an epoch. Thus, the correct option is D.
What is an Epoch?The geologic time scale is a representation of the time based on the rock record of the Earth. It is a system of chronological dating which uses the process of relating strata to time and the scientific branch of geology that aims to determine the age of rocks.
An epoch or reference epoch is an instant in time which is chosen as the origin of a particular calendar era. The epoch serves as a reference point from which the time is measured.
An epoch is a division of the geologic period and it is the smallest division of geologic time which lasts for over several million years.
Therefore, the correct option is D.
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which sensory receptors are involved in hearing
Answer:
The cochlea is filled with two fluids (endolymph and perilymph), and inside the cochlea is the sensory receptor, the Organ of Corti, which contains hair cells, or the nerve receptors for hearing.
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Mechanoreceptors are involved in hearing, which transmits the signals from external stimuli through mechanical ion-gated channels.
What is the structure of the ear?The organ of the Corti on the basilar membrane has hair cells that are involved in the sensory mechanism for hearing.
In the inner ear, there are six receptors (cochlea, two otolith organs, and three semicircular canals) which make a transduction unit consisting of hair cells.
In these receptors, external stimuli transmit the signal through the mechanically gated channel, external stimuli are touch, pressure, and hearing.
This processed signal to the brain by the neurons to hear the sound, and all the signal accumulate through the primary sensory receptors which are hair cells in the ear.
Therefore, mechanoreceptors are involved in hearing.
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The given question is incomplete, so the most probable complete question is,
which sensory receptors are involved in hearing?(1 point) responses thermoreceptors thermoreceptors photoreceptors photoreceptors chemoreceptors chemoreceptors mechanoreceptors
Which star may have once been similar to our sun in mass and luminosity?
A. Deneb
B. Spica
C. Procycon b
D. Proxima centauri
Answer:
c. procycon b :)
modeling DNA Mutations Table
base sequence of mutated strand
Answer: Only a single codon in the gene sequence is changed in base substitution mutation. Although a base substitution alters only a single codon in a gene, it can still have a significant impact on protein production.
Explanation:
Collecting wild specimen and allowing them to reproduce in an environment away from predation can also be called a
Your answer:
Answer:
Captive breeding program
Explanation:
A captive breeding program can be defined as the process of collecting wild specimen and allowing them to reproduce in an environment away from predation. This is an important part of saving endangered species. Specimens of such species are bred in zoos and similar facilities in order to build a healthy population. Sometimes, these species are successfully reintroduced back into the wild. Examples of animals that were successfully saved like this are the California condor, black-footed ferret, golden lion tamarin, and red wolf.
If 35% of the bases in a region of the mouse genome are cytosine, what percentage in that region are adenine?
A. 15%
B. 20%
C. 30%
D. 35%
E. 40%
Answer:
A. 15%
Explanation:
DNA is composed of four nitrogen bases: Adenine (A), Thymine (T), Guanine (G), and Cytosine (C). Chargaff's rule of base pairing states that A always pairs with T, while G always pairs with C. The total distributed percentage of the four 4 nitrogen bases must be equal to 100%. In this case, the C content is 35%, thereby G=35% (i.e., equal to C content), while the remaining 30% must be equally divided between T=15% and A=15%.
Which of the following insulate against the cold? (Choose one: lipids, carbohydrates, nucleic acids, proteins).
Answer:
lipids
Explanation:
CAN SOMEONE PLEASEEE HELP ME WITH THIS SCIENCE QUESTION THANK YOU !!
Answer:
The answer is D.
Explanation:
Farmers have to continuously use the pesticides once used the first time because they have become an indispensable part of an agricultural cycle.
#teamtrees #WAP (Water And Plant)
CAN SOMEONE PLEASEEE HELP ME WITH THIS SCIENCE QUESTION THANK YOU !!
Answer:
Integrated pest management (IPM), also known as integrated pest control (IPC) is a broad-based approach that integrates practices for economic control of pests. IPM aims to suppress pest populations below the economic injury level (EIL).
⚠️⚠️⚠️Describe what occurs between water molecules in hydrogen bonding. Explain where the hydrogen bond happens.
Why does having low glucose or oxygen in your cells make it difficult to walk up steps
Answer:
Oxygen and glucose are both essential for energy production.
Explanation:
Glycolysis is the break down of sugar with or without the presence of oxygen to provide energy to our cells. The energy for the cell is in the form of ATP. In the presence of oxygen the process is much more efficient and is the last step in oxidative phosphorylation. In this process the Oxygen will pick up the protons that have driven the proton motif force that was used to turn the ATPase that was used to make ATP. The oxygen picks up these protons and keeps the cell pH stable and this is called metabolic water. The Dr should check the blood for the presence of both glucose and oxygen.
The function of an enzyme depends upon the enzyme's shape and
Answer:
The activities of enzymes also depend on the temperature, ionic conditions, and the pH of the surroundings.
Explanation:
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Crown me as brainliest:)
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Answer:
desert
Explanation:
the sun plays a big part
Answer:
[tex]\boxed {\boxed {\sf Desert}}[/tex]
Explanation:
Let's evaluate the information given.
Large ears
This feature allows more heat to escape from the animal. A large ear=greater surface area= more blood vessels to release heat.Obtains water from food
In certain biomes, water is scarce. Animals can't obtain their water from drinking, so they turn to their food as a water source.Burrows underground during the day
Animals will hide underground to stay cool. It limits their exposure to the sun and heat.Based on this information, we can assume this is a desert animal. In the desert it is very hot (adaptations of large ears and undergrounds burrows) and there is little water (gets water from food).
which statement describes DNA
Answer:
DNA stores an organism’s genetic code.
Answer:
B
Explanation:
I did the test
In relation to potato chips, consumers respond better to advertisements that describe them as being 75 percent fat free than having 25 percent of fat. This illustrates the concept of __________.
A.
flip-flopping
B.
loss aversion
C.
framing
D.
risky decision making
The answer is C. framing
Answer:
c
Explanation:
trust bro
Answer:
c
Explanation:
Hay is made up of organic compounds. What are the main three elements found in many organic compounds?
What does it mean to move UP the concentration gradient?
Answer:
"Up" or "against" a concentration gradient means from low concentration to high concentration. Moving in this direction requires some sort of energy input, such as active transport using ATP, or an electrical gradient, or something else.
Explanation:
If this helps, is it possible to give me brainliest please?
Waxing describes the period where we see more and more of the moon from Earth. true or false
Answer:
Yes, this is true.
Explanation:
Answer: True.
Explanation:
What does brianliest mean?
Answer:
Brainliest is where you, the creator, think that a specific person did a good job. If you give them brainliest it is saying thank you to one person but not the other.
Good day mate, Mallory <3