Answer:
The options are
A. both homzygous dominant
B. both homzygous recessive
C. both heterozygous
D. one homzygous dominant, one homzygous recessive
The answer is C. both heterozygous
Since it’s in the ratio of 1:2:1 the genotype will be Rr and Rr.
Identify types of toxic waste generated in a dental office
Answer:
disposable needles, scalpel blades, contaminated broken glass, dental burs, endodontic files and reamers.
Explanation:
Which limiting factor is density independent? a. food supply b. drought c. disease d. competition
Answer:
im pretty sure its d. competition
Explanation:
Which of the following is an example of specific immunity?
Answer:
Immunity to Small Pox
Explanation:
Over the years, Europeans had built up an immunity to smallpox because many had contracted the disease and still survived. As the population grew children were born with some immunity to the disease. When the Europeans arrived in the Americas, and smallpox spread around the native peoples, the Europeans did not contract the disease because they were immune. However, since the natives were not immune, they slowly died of due just to the disease as well as some parts of the war between the europeans.
What is the relationship between genes DNA and proteins
Answer:
Although you might have heard people talk about a gene for red hair, green eyes or other characteristics, it's important to remember that genes code for proteins, not traits. While your genetic makeup does indeed determine physical traits like eye color, hair color and so forth, your genes affect these traits indirectly by way of the proteins created via DNA.
Hopefully, this answer helped! :D
Answer:
Most genes contain the information require to make proteins. The type of RNA that contains the information needed to make protein is called a messenger RNA or mRNA and it carries the message from the DNA out of the nucleus into the cytoplasm
Explanation:
Meiosis I is often referred to as reduction division because it results in the reduction of the chromosome number from diploid to haploid. The chromosomes that remain in each cell are made of sister chromatids. During meiosis II, what will happen to the sister chromatids?
Answer: they will separate into different cells.
Explanation:
They separate into 4 cells.
Sister chromatids separate during meiosis II, resulting in haploid cells with non-duplicated chromosomes.
What is sister chromatid?A sister chromatid is two identical copies of a chromosome formed by DNA replication, with both copies joined together by a common centromere.
To put it another way, a sister chromatid is 'one-half' of a duplicated chromosome. A dyad is a pair of sister chromatids.
Meiosis II is analogous to mitosis. There is, however, no "S" phase. Because of recombination, the chromatids of each chromosome are no longer identical.
Meiosis II separates the chromatids, resulting in two daughter cells with 23 chromosomes (haploid), each with only one chromatid.
Thus, during meiosis II, there will be the separation of the sister chromatids.
For more details regarding meiosis, visit:
https://brainly.com/question/29383386
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Elements or compounds that can only be separated or combined to make substances with new properties by means of a chemical reaction.
Answer:
substance
Explanation:
hello hope this helps
What happens to the oxygen in respiration?
Explanation:
During aerobic cellular respiration, glucose reacts with oxygen, forming ATP that can be used by the cell. Carbon dioxide and water are created as byproducts. In cellular respiration, glucose and oxygen react to form ATP. Water and carbon dioxide are released as byproducts.
Define permafrost in you own words!
Answer:
Permafrost is ground that continuously remains below 0°C for two or more years, located on land or under the ocean. Permafrost does not have to be the first layer that is on the ground. It can be from an inch to several miles deep under the Earth's surface.
Explanation:
Answer: pick one
try this,
Permafrost is a permanently frozen layer on or under Earth's surface. It consists of soil, gravel, and sand, usually bound together by ice. ... Permafrost covers approximately 22.8 million square kilometers (about 8.8 million square miles) in Earth's Northern Hemisphere. Frozen ground is not always the same as permafrost.
or try this,
Permafrost is soil, rock or sediment that is frozen for more than two consecutive years. In areas not overlain by ice, it exists beneath a layer of soil, rock or sediment, which freezes and thaws annually and is called the "active layer".
Explanation:
hope it helps, please mark me brainliest, please
Based on the weathering patterns, guess the rock type shown in each photo.
Answer:
Granite and sandstone
what are the two supporting evidence of seafloor spreading theory?
Answer: Several types of evidence supported Hess's theory of sea-floor spreading: eruptions of molten material, magnetic stripes in the rock of the ocean floor, and the ages of the rocks themselves. This evidence led scientists to look again at Wegener's hypothesis of continental drift.
Explanation:
cell structure matching ( help don't know)
Answer:
so the a goes down and up and then it finds two pretty bestfriends
Which of the choices below provide direct evidence of evolution
A. Fossil
B. Plate tectonics
C. DNA
D. Both A and C
How many ATP's are generated from one glucose molecule that has
completed cellular respiration?
Is it 36 or 38
If a dented pea plant is crossed with a heterozygous smooth plant, what will be the phenotypes of the offspring?
I attached the answer in a photo
What cellular process does a mitochondrion perform for the cell?
Answer:
Cellular Respiration.
Explanation:
Why are whales classified as mammals
Answer:
They give birth to young, have fur, have lungs, and provide milk for the young.Explanation:
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According to the UCSB Science Line, Whales are mammals because they give birth to young, have fur, ( even though it may not be visible ) have lungs and breathe, and provide milk for the young.
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I got these facts from the UCSB Science Line, you can check it out if you want.
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Hope this helps! <3
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Which wave has high enough energy to cause damage to skin and sometimes cancer?
a) visible light
b) ultraviolet rays
c) infrared rays
d) microwaves
Information that a system uses to monitor progress and make adjustments is called the _____.
output
feedback
process
input
Answer:
process
hope it helps
thanks for the points
define hydrogen bonds
How does ATP structure relate to its function?
Answer:
The structure of ATP is a nucleoside triphosphate, consisting of a nitrogenous base (adenine), a ribose sugar, and three serially bonded phosphate groups. ATP is commonly referred to as the "energy currency" of the cell, as it provides readily releasable energy in the bond between the second and third phosphate groups.
Please answer both of them.
8. In rabbits, the allele for black coat color (B) is dominant over the allele for brown coat color (b).
Two black rabbits are mated. They produce some offspring that are black and some that are
brown. What are the genotypes of the parents?
9. using the information from question #8, what genotypes are possible among the offspring?
Answer:
8. Bb and Bb
9. BB, Bb, and bb
Explanation:
basically you're right lol. good luck!
Answer:
8. Bb and Bb
9. BB, Bb, and bb
Explanation:
If nessessary create a punnet square. That should help if you have another problem like this.
It is a test please help
Which organ is not connected to its system?
a) Spinal cord – Nervous system
b) Large intestine – Digestive System
c) Testes – Reproductive system
d) Kidney – Circulatory system
Answer:
Kidney is not connected to its system
Explanation:
the kidney belongs to the renal system
The shape of each of the molecules is important because A) if the shape of any molecule in an organism changes, the DNA in that organism will also change B) the shape of a molecule determines the age of an organism C) the shape of a molecule determines how it functions in chemical reactions D) molecules having different shapes are always found in different organisms
Answer:
The correct answer would be - C) the shape of a molecule determines how it functions in chemical reactions
Explanation:
The molecular shape of the molecules is one of the important characters of the molecules. It is important due to the fact that molecular shape determines how a molecule will react and interact with other molecules.
The shape of the molecules determines boiling point, melting point as well as various chemical reaction by determining the bonds. For instance, H2O or water has a tetrahedral shape which affects its bonding and properties. If molecules were linear in shape there would be no life existed.
Thus, the correct answer would be - C)
how are mitochondria similar to chloroplasts?
Answer:
Mitochondria within animal cells and chloroplasts within plant cells look like prokaryotes. Mitochondria and chloroplasts are similar in size and features to prokaryotes. ... Both mitochondria and chloroplasts have their own circular DNA and can function independently of the eukaryotic host cell.
Explanation:
hope this help
pick me as the brainliest
Classify the statements based on whether they describe earthquakes or volcanoes.
Answer:
Here's the real answer!!
Explanation:
3 QUESTIONS PLS HELP MIDDLE SCHOOL/HIGHSCHOOL SCIENCE
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1. Which of these is a piece of evidence supporting the theory of evolution?
A) Ostriches resemble armadillos.
B) Armadillos resemble emus.
C) Glyptodons resemble armadillos.
D) Finches resemble glyptodons.
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2. Which physical evidence supports the evolution of Earth due to chemical weathering?
A) Hammer shape of Bryce Canyon rocks
B) Red color of Bryce Canyon rocks
C) Streaks on the face of Wave Rock
D) Concave shape of Wave Rock
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3. A scientist is designing an investigation to study the impact of fungal disease on the population of mountain yellow-legged frog in a recreational nature park. What is most likely the outcome variable (dependent variable) for the study?
A) Frog population
B) Fish population
C) Disease-controlled habitat
D) Native habitat in natural setting
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Answer:
d,c,a
Explanation:
What kind of material is transported through osmosis?
Answer: water
Explanation: Osmosis is the diffusion of water through a semipermeable membrane according to the concentration gradient of water across the membrane. Whereas diffusion transports material across membranes and within cells, osmosis transports only water across a membrane and the membrane limits the diffusion of solutes in the water.
1) A region of the country is rapidly growing in population, causing the demand for electricity to go up each year. As a result, a new source of electricity is needed. This particular region of the country has plenty of agriculture, rivers, and access to coal deposits underground. Which of the following would be the cheapest way for this region of the country to make electricity, have minimal impact on the environment, yet not add carbon dioxide to the atmosphere?
Group of answer choices
A)Use the agriculture biomass to generate a renewable fuel that can be burned to generate electricity
B)Use the coal deposits to generate electricity in a few coal fired facilities
C)Build a nuclear power plant in the middle of the region
D)Build dams along the rivers to generate electricity
2)The image provided shows a partial river food web.
The local town relies on this river ecosystem to sustain their population both economically and as a source of food. Using the food web provided, which statement provides the best reasoning for regulating the amount of fish removed from the river by humans.
Group of answer choices
A)Regulation will help the ecosystem to remain balanced and contribute to the stabilization of other populations of river organisms.
B)Regulation will increase the amount of energy transferred from the catfish to the eagle.
C)Regulation will allow contaminated sediments to decrease in the river due the removal of the contamination source.
D)Regulation will ensure that carp will not overpopulate the ecosystem and begin to consume larger organisms like the salmon.
Answer:
1- D
2- A
Explanation:
1- Water and electricity is the best option to decrease carbon footprint.
2- not sure
Bacteriophage .They used the radioactive isotope sulfur-35 to label the of the virus and phosphorus-32 to label the of the virus. They allowed the tagged virus to infect bacteria and studied the results. Hershey and Chase found that the only radioactive isotope within the bacteria was . This result indicated that the genetic material inserted by the virus to infect the bacteria was DNA .
Answer:
Bacteriophage
Explanation:
Bacteriophage is nothing but a virus that harms and kills the bacteria.
The Hershey-Chase Experiments is a well known experiment done by scientist, Alfred Hershey and Martha Chase. They conducted the experiment in the year 1952.
It was an extra ordinary experiment which made the world believe that the DNA is the genetic material and not a protein. In their experiment, they tried to find out if the protein coat or the core of the DNA of the virus which enters into the infected cells would help them to understand whether the genes were made of DNA or of protein.
They used sulfur-35 and phosphorus-32 radioactive isotopes to trace the DNA and the proteins.
Answer:
Explanation:
Hershey and Chase started with a virus called a bacteriophage.
They used the radioactive isotope sulfur-35 to label the protein
of the virus and phosphorus-32 to label the DNA of the virus.
They allowed the tagged virus to infect bacteria and studied the results. Hershey and Chase found that the only radioactive isotope within the bacteria was 32P.
This result indicated that the genetic material inserted by the virus to infect the bacteria was DNA.
HURRY LAST QUESTION TEST DUE IN 5 MINUTES !!!!!!
Where are you most likely to find ocean water with high density? A. Near the polar regions B. Near the equator in the Pacific Ocean D. Mid latitudes in the pacific ocean
Answer:
I would say the answer is A. I'm not 100% percent but that's what I would put.
Near the polar regions :)