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2 years ago

Describe 1 new way that new genes can evolve

Biology

1 answer:

grigory [225]2 years ago

8 0

Through the duplication and modification of pre-existing genes.

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What is the main idea of the story knights and dragons

Arte-miy333 [17]

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2 years ago

The assisted transport of a molecule across the cell membrane without an expenditure of energy is known as what?a. Diffusion b.

Fittoniya [83]

Answer:b. Facilitated transport

Explanation:in the usual activities of the cell,it's cell membrane is responsible for the movement of substance in and out of the cell.

Such substances include nutrients,water, oxygen etc.

The plasma membrane select the substances that it allows into the cell thus it is said to be selectively permeable.

The plasma membrane of the cell has a phospholipid bilayer made up of cholesterol, proteins and glycoproteins.

The proteins on the membrane are useful for facilitated diffusion.

In this diffusion process,the proteins helps to carry large molecules across the cell membrane.such molecules includes glucose,amino acids etc.

In the process energy is not expended so it is a type of passive transport.

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3 years ago

The function of red blood cells is _____________

Zolol [24]

Answer:

The primary function of red blood cells is to transport oxygen to body cells and deliver carbon dioxide to the lungs.

Explanation:

5 0

2 years ago

Read 2 more answers

Using the model presented, what is being formed, B, from the process represented by C? Correctly identify B and C as well as the

Nonamiya [84]

The provided question is incomplete as it lacks the image required to identify the, however the correct image is attached:

Answer:

B is protein

C is the process of translation

Explanation:

The given image is a flow chart representation of the process of the protein synthesis from the DNA molecule by a two-step process that is combinedly known as the central dogma.

The first step is a transcription in which an RNA molecule (mRNA) is synthesized from the DNA molecule in organism nucleus (in eukaryotes only). The second step is to making a polypeptide chain of amino acid with help of rRNA, tRNA, and mRNA, this process is known as translation and represented in the image as C and B is the protein that formed.

Thus, the correct answer is - B is protein

C is the process of translation

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2 years ago

What are two biotic factors that affect life in tropical rainforest

musickatia [10]

here are a few. frogs, snakes,toucans ,lizards

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3 years ago