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2 years ago

Which of the following statements is true?

Biology

1 answer:

fiasKO [112]2 years ago

3 0

Answer: Mutations are the most fundamental way to add new genes to a gene pool.

Explanation:

Mutation refers to the process through which the normal sequence of altered. It may be either acquired or hereditary. It leads to addition of new genes to a gene pool.

The reason for not considering other statements as true are:

1. It is the hereditary mutation that are passed form parent to offspring's and acquired mutation is caused by external factors.

2. Acquired mutation are caused by external factors such as radiation.

3. Germ line mutation are important to evolution because they can be inherited.

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The antibacterial activity of penicillin is related to the inhibition of a key bacterial enzyme. Explain this mechanism of enzym

serious [3.7K]

Answer:

Penicillin binds and inhibits bacterial enzyme DD-transpeptidase.

Explanation:

Penicillin is made up of 4 rings of β-lactam and acts by binding to DD-transpeptidase of bacteria. The DD-transpeptidase facilitates the cross-linking of the peptidoglycan cell wall of bacteria. This leads to malformation of the protective cell wall of the bacteria and causes it to lyze and die.

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3 years ago

Which one of the following is a microbe

Sergio [31]

D is the answer to the question

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2 years ago

True or false: Fish are considered carbon-based organism

vekshin1

Answer:

Its how you see it.

Explanation:

1.Life on Earth is based on carbon, likely because each carbon atom can form bonds with up to four other atoms simultaneously. This quality makes carbon well-suited to form the long chains of molecules that serve as the basis for life as we know it, such as proteins and DNA.

2.All life on earth can be thought of as "carbon-based." Just be careful about turning this around backwards. It is true that all living things contain carbon compounds... but the opposite is not true. Just because a certain material is referred to as organic does not mean it is or ever was alive.

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2 years ago

What are the 9 important functions of proteins in your body?

IceJOKER [234]

Answer:

1. growth

2.causes biochemical reactions

3. acts as a chemical messenger that aids communication between your cells, tissues and organs.

4. provides structure

5.maintains proper pH

6. balances fluids in the body.

7.boosts immune health

8. transports and stores nutrients

9. provides energy for you body

Explanation:

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2 years ago

The earliest organisms were completely heterotrophic in nature. Why?

bearhunter [10]

The correct answer to this question is this one: they lacked oxygen. The earliest organisms were completely heterotrophic in nature because of the reason that they lacked oxygen. A heterotroph is an organism that cannot fix carbon and uses organic carbon for growth.

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2 years ago