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ki77a [65]
3 years ago
6

The type of selection that favored progressively larger brain size in human evolution is _______ selection

Biology
1 answer:
dem82 [27]3 years ago
6 0
<span>T he type of selection that favored progressively larger brain size in human evolution is </span>directional selection. Directional selection is a type of natural selection (besides stabilizing selection, disruptive selection, kin selection,..)<span> in which an extreme phenotype is favored over other phenotypes. Because progressively larger brain size is an extreme phenotype this is a directional selection.</span>


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What is transcription in biology
ankoles [38]

Transcription is the first step of gene expression, in which a particular segment of DNA is copied into RNA by the enzyme RNA polymerase. Both DNA and RNA are nucleic acids, which use base pairs of nucleotides as a complementary language.



4 0
4 years ago
Read 2 more answers
Use the terms in the answers below to fill in the blanks in the following sentences. "An investigator is studying mutants in met
Arlecino [84]

Question is incomplete i have added full question in ask for detail section.

Answer:

Option a. met3, Met3p, MET3 is correct answer

"An investigator is studying mutants in methionine synthesis. The _met3_ mutants are unable to ATP sulfurylase, also known as _Met3p_. This protein is the product of the _MET3_gene. "

Explanation:

MET3 encodes ATP sulfurylase, which is a catalyst of first step of the sulfur assimilation pathway. This pathway results in the formation of hydrogen sulfide which is  a precursor in the biosynthesis of  cysteine, homocysteine, and methionine.

Source: National Center for Biotechnology Information, U.S. National Library of Medicine

3 0
3 years ago
What is parthenogenesis? give an example
ANEK [815]

Answer:

It's a form of asexual reproduction!

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The two main ways in which parthenogenesis happens is by apomixis or automixis. Through apomixis , the egg cells are produced by mitosis. Through In automixis, egg cells are produced by meiosis.

Mitosis = a part of cell cycle: replicated chromosomes are separated into 2 nuclei

Meiosis = type of cell division that reduces the chromosome number by half. So now there is four haploid cells that are  genetically distinct from their parent cell.

Example:

An example of an animal that can use this reproduction is a bonnethead shark! Once a shark had a baby in a tank that only had three females!

(read about that on wikipedia)

3 0
3 years ago
In pea plants, the allele for inflated pod seed, I, is dominant over the allele for constricted pod seed, i. The Punnett square
scoundrel [369]

Answer:

II

Explanation:

Since 'I' is the more dominant trait and 'homozygous dominate' is asking for the same dominante feature, II should be the answer

Hope this helps!

:)

7 0
4 years ago
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Which cell is the first phase of m phase
marissa [1.9K]

The first cell of the the M phase is mitosis.

7 0
3 years ago
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