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Alex777 [14]
2 years ago
15

When crossing over take places chromsomes

Biology
1 answer:
laila [671]2 years ago
6 0

Answer: D

Explanation:

Crossing over refers to homologous chrosmomes exchanging DNA which creates variation of chromsoomes that are inheried by offspring.

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Suppose a population of insects live in a sandy habitat. some of the insects have tan bodies and some have green bodies. over ti
erma4kov [3.2K]
The number of green bodied insect would probably increase in the grass habitat. The insects that are green would be harder to spot by predators and therefore more likely to survive and produce offspring. The process of natural selection would favor the green color of the body and the future generations will have an increase in numbers of green bodied individuals over the tan bodied individuals.
8 0
3 years ago
Phenylketonuria (PKU) is a recessive genetic disorder. If both parents are carriers, what is the probability of this couple havi
wel

Answer: 25%

Explanation: if you do the Punnett Square method then you would see that both parents would have been Dominant  for the trait, so there is a 50% chance of  the offspring to be a carrier, 25% chance of the offspring to have PKU and 25% chance for it to ave  

6 0
3 years ago
Which of these best identifies the genetic code of an organism?
Artist 52 [7]

Answer:

A. The number of genes on its chromosomes

Explanation:

The reason why genes are so important is because genes can be transcribed to make mRNAs, and mRNAs can then be translated to make proteins. Proteins are an integral part of life, since they regulate so many processes and functions. Therefore, the number of genes (or lack thereof) in an organism defines how the organism is going to function.

8 0
2 years ago
PLEAS HELP
stiv31 [10]

A macrophage may engulf a pathogen by endocytosis, which involves the reorganization of actin microfilaments in the membrane and microtubules in the cytoskeleton.

<h3>What is endocytosis?</h3>

Endocytosis is a cellular process by which a cell can absorb materials from the surrounding medium, such as viruses and bacteria in the case of macrophages.

Microfilaments and microtubules are proteins that form part of the cytoskeleton and dynamic conformational changes of them are associated with the cytoskeletal rearregement during the phagocytic process.

The actin microfilaments in the membrane and microtubules in the cytoskeleton form part of the process of endocytosis because they need to reorganize during cell movement.

In conclusion, a macrophage may engulf a pathogen by endocytosis, which involves the reorganization of actin microfilaments in the membrane and microtubules in the cytoskeleton.

Learn more about actin filaments here:

brainly.com/question/13777481

#SPJ1

5 0
2 years ago
Traits that enable an organism to reproduce, without necessarily helping them to survive, are often selected for. Darwin called
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The example that does not exhibit sexual selection is:
D. male elephant seals fighting over territory and potential female mates
The competition for territory is also one that helps the elephant seals survive. This is because a seal with a larger territory is likely to have access to a greater amount of resources, ensuring its survival.
4 0
3 years ago
Read 2 more answers
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