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3 years ago

In which direction does dna polymerase make new strand of dna

1 answer:

8 0

DNA polymerase moves along the old strand in the 3'-5' direction, creating a new strand having the same 5'-3' direction.

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How can reproductive isolation lead to speciation?

hram777 [196]

How can reproductive isolation lead to speciation? If populations cannot mate successfully with one another, genetic differences may accumulate in the populations. Over time they become very different and give rise to new species.

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3 years ago

You are an almond grower and want to determine whether almond size (measured as shelled almond weight) is a heritable trait. A s

inn [45]

Answer: 1. S = 0.77

2. R = 0.14

Explanation:

1. Selection differential is the difference between the population mean and the average of the selected parents. Its symbol is S.

S = mean of selected parents - population mean

S = 6.48 - 5.71

S = 0.77

2. Response to Selection is how much gain you make when crossing over selected parents. Its symbol is R.

R = mean of offspring of selected parents - population mean

R = 5.85 - 5.71

R = 0.14

3. Heritability is, basically, a statistical variable that shows how much the variation in a trait is due to genetic factors. Its symbol is h².

To calculate it, use Breeder's Equation:

R = h²S

$h^{2}=\frac{R}{S}$

$h^{2}=\frac{0.14}{0.77}$

h² = 0.18

4. You would expect the production to be strongly influenced by environment, because heritability lies between 0 and 1. Low heritability means there is low level of resemblance between offspring and parents. As this program heritability is low, the resemblance is small, which means the characteristics are influenced mostly by the enviroment.

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3 years ago

Food chains from four different habitats are shown below.

Anna11 [10]

Answer:

C i think.

Explanation:

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3 years ago

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What is the base pairing rule for dna?

Alik [6]

Adenine pairs with thymine (or uracil), and guanine pairs with cytosine.

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3 years ago

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The range of temperatures in which an insect is able to live and reproduce is one element of that organism's ___________________

Karo-lina-s [1.5K]

The range of temperatures in which an insect is able to live and reproduce is one element of that organism's niche, a description of its ecological requirements.

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3 years ago