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3 years ago

Choose all the answers that apply.

Biology

1 answer:

zvonat [6]3 years ago

3 0

Answer:

Anorexia can cause tooth decay , heart damage , headaches ,

cancer

Explanation:

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The National Weather Service issues an earthquake warning for Los Angeles, California. This prediction most likely came from:

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A meteorologist would most likely have made t<span>his prediction. </span>

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Why are inheritance patterns more complex than simple patterns Mendel observed?

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Answer:

Mendels studies predicted inheritance in a simple manner by studying traits which were not continuous or polygenic. Hence, the patterns of Mendel's observations were simple.

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Seeds can grow into which of the following types of plants?

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3 years ago

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The gene for flower position in pea plants exists as axial or terminal alleles. Given that axial is dominant to terminal, list a

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Answer:

A A

a Aa Aa

All the offspring have flower located at axial position

A a

A AA Aa

a Aa aa

Three offspring with genotype i,e Aa, Aa and Aa will have flower located at axial position

Only offspring with genotype "aa" will have flower located at terminal position

Explanation:

Let the allele "A" represent the characteristics of axial position of flower

Let the allele "a" represent the characteristics of terminal position of flower

Given -

"A" is dominant over "a"

F1 generation -

Two parents with homozygous genotype for both A and a are crossed . The punnet square for the cross between "AA" and "aa" is as follows -

A A

a Aa Aa

Thus the genotype of offspring is "Aa"

Since, "A" is dominant over "a", all the offspring have flower located at axial position

F2 generation-

The cross between two parents having heterozygous genotype "Aa" will take place .

The punnet square for the cross between "Aa" and "Aa" is as follows -

A a

A AA Aa

a Aa aa

Three offspring with genotype i,e Aa, Aa and Aa will have flower located at axial position

Only offspring with genotype "aa" will have flower located at terminal position

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3 years ago

Why do cells with the same DNA have different functions?

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Answer: This is because all of the cells in our bodies start from a single fertilized egg. With few exceptions, all cells in a person's body have the same DNA and genes. As cells divide and grow different genes are expressed, resulting in different cell types.

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