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Rzqust [24]
2 years ago
10

When drastic changes occur to an enzyme they are most likely going to become

Biology
1 answer:
olga55 [171]2 years ago
8 0

Answer:

this note might help you :

Explanation:

If the enzyme changes shape, the active site may no longer bind to the appropriate substrate and the rate of reaction will decrease. Dramatic changes to the temperature and pH will eventually cause enzymes to denature.

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Explain how a scientist can determine when a particular species of dinosaur lived on Earth.
cluponka [151]

Answer:

by fossil dna

Explanation:

it is too easy for a sciencetist

8 0
2 years ago
Consider two different traits in mice affecting tail length and fur color. A two-factor cross was made involving true-breeding m
Stells [14]

Answer:

See the answer below

Explanation:

Null hypothesis: The two genes are independently assorting and therefore, are not linked to each other.

Let A represents the allele for tail length and B for fur color. Long-tail A is dominant over short tail a while brown fur B is dominant over white fur b.

For the first cross involving true-breeding mice:

    AABB   x   aabb

F1         AaBb (long tails and brown fur)

For the second cross:

      AaBb   x   aabb

4 AaBb - Long-tail, brown fur

4 Aabb - Long tail, white fur

4 aaBb - short tail, brown fur

4 aabb - short tail, white fur

Since the phenotypic ratio from the cross is 1:1:1:1, if the null hypothesis was to be true, it means that the expected phenotype ratio should be 1:1:1:1.

In order to test this hypothesis, we use Chi-square:

phenotype                           O            E                 X^2  

Long-tail, brown fur           118          97.5        \frac{(118-97.5)^2}{97.5} = 4.31

Long tail, white fur              77           97.5             4.31

short tail, brown fur             81           97.5              2.79

short tail, white fur              114           97.5              2.79

Total                                                                          14.2

Degree of freedom = 4 - 1 = 3

Critical Chi-square value = 7.815

The calculated Chi-square value is more than the critical value, hence, the null hypothesis is rejected.

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3 years ago
The parents of a child with attention deficit–hyperactivity disorder ask the nurse about using medication. what is the most freq
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The child experiences difficulty following the educator's headings. The ADHD is a mental issue of the neurodevelopmental sort. It is described by issues focusing, over the top action, or trouble controlling conduct which isn't proper for a man's age.
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3 years ago
PLS HELP :C i GIVE BRAINLEIST
Elenna [48]

.............Help on what?

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3 years ago
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Which kind of cell is also called an epithelial
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Skin cells are also called epithelial cells
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