Explain how mutations add variation to the genes of a species?

Biology

2 answers:

sertanlavr [38]3 years ago

6 0

Slowly the species changes if the mutation is considered helpful or an adaptation. If it is unhelpful that animal dies

Tema [17]3 years ago

5 0

Basically, a DNA is made up of sequences of nucleotide bases (these are the little strands attaching each side of the DNA that you see in the model). These sequences define what features you get, e.g. hair colour, eye colour, etc. But, these can also mutate, forming a DIFFERENT sequence, this will then lead to a different hair color, eye color, etc.

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Marianna [84]

Answer:

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3 years ago

.. Which of the following mutations would have the potential to affect future generations of

ch4aika [34]

Answer choices:

A frame shift mutation in the X chromosome of a cheek cell
A chromosomal mutation in the Y chromosome of a kidney cell
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Answers:

A point mutation in the first chromosome of a sperm cell

Explanation:

Only mutations that affect the germ line are passed on to the next generation. Therefore, only mutations in the egg and sperm of an individual have the potential to affect the next generation.

Mutations in cheek cells, kidney cells, and uterus cells might cause cell death or cancer. This genetic material is not passed on to the next generation, only the egg and sperm contribute this material. Therefore, only mutations here will affect the generation.

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4 years ago

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after a stem cell divides in the stratum basale, the resulting daughter cell enters the stratum ______ and it begins to lose its

m_a_m_a [10]

The stratum spinosum is a layer of the epidermis localized between the stratum granulosum and stratum basale. It consists of differentiated cells called keratinocytes.

After a stem cell divides in the stratum basale, the resulting daughter cell enters the stratum SPINOSUM and it begins to lose its ability to divide.

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In consequence, keratinocyte replacement entirely depends on epidermal stem cells.

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