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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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2 years ago

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2 years ago

How do genes determine the traits of an organism?

Alecsey [184]

The genes, which are part of DNA, contain the genetic information inherited from the parents determine the traits of an organism.

The ‘complete set of all the genes and the DNA’ is called the genome which stores the entire set of information of how an organism is structured and maintained.

The pattern of dominant and/or recessive traits and the genetic variations are determined by the allelles.

Explanation:

The genetic codes in the genes represent the particular amino acid codes and their linkages specific to particular protein. The amino acids link together to form long polypeptide chains of protein molecules.

These proteins determine various traits through various roles like:

Messenger proteins: Hormones like insulin, estrogen etc., control and coordinate various functions of the body

Pigments: Like melanin determines the color of the hair, skin, eyes.

Structural protein: Like keratin gives structure of hair, nails; myosin determines muscle structure

Antibodies: Determine the immunity of a person

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2 years ago

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