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Mice21 [21]
3 years ago
15

What is the effect of differential reproduction over time?How is the sickle-cell allele maintained through natural selection?

Biology
1 answer:
ololo11 [35]3 years ago
6 0

Answer:

Differential reproduction leads to a change in allele frequencies over time. This occurs because of natural selection favoring "successful" individuals that produce more viable offspring.

The sickle-cell allele is maintained in populations exposed to malaria through balancing selection, since heterozygous individuals have protection against the disease.

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A always pairs with ______
Degger [83]

Answer:

thymine(t)

cytosine(c)

56

44

35

Explanation:

A always pairs with T, so 56 A's will pair with <u>56</u> T's

G always pairs with C, so 44 G's will pair with <u>44</u> C's

100 base pairs means there are 200 bases present altogether

out of 200, we have 65 T's so ultimately we will have 65 A's

we are now left with 70, of which have will be C and half G, which gives 35 C's and G's

please give brainliest

4 0
3 years ago
Read 2 more answers
If the order of base pairs in a DNA molecule is changed, what might occur?
tatuchka [14]

Answer:

When you change the order of the base pairs in an organism, that is called a mutation. There are three types of mutations: a deletion, an addition, and a substitution. In a deletion, one of the three bases in a codon is pulled out, or deleted.

Explanation:

6 0
2 years ago
An atom on the periodic table can be identified by its
zaharov [31]

Answer:

The number of protons in it.

Explanation:

There are two properties that can be used to identify an element:

  • the atomic number  
  • the number of protons in an atom.

The number of neutrons and number of electrons are frequently equal to the number of protons, but can vary depending on the atom in question

4 0
2 years ago
What is the balance between heat produce and heat lost in the body
Marizza181 [45]

Answer: Body temperature is the balance between heat produced in the body and heat loss from the body. Heat Production Heat Loss = Body Temperature.

Explanation:

4 0
3 years ago
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A colleague has used computer modeling to design an improved enzyme. To produce this enzyme, the next step is to:___________.
Effectus [21]

Answer:

C) determine the nucleotide sequence for the improved enzyme.

Explanation:

Computational enzyme design (CED) can be defined as a bioinformatic <em>in silico </em>approach used to model, construct, and enhance enzyme catalysis. CED uses complex optimization algorithms that enable to direct evolution by using computational systems. As a further step, after the modelization of optimal enzymatic activity, bioinformaticians require to determine the nucleotide sequences which will be subsequently used to synthesize the corresponding enzymes.

5 0
3 years ago
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