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TiliK225 [7]
3 years ago
15

Which of the following statements about hominin evolution is correct? As hominins have evolved, _____.

Biology
1 answer:
Valentin [98]3 years ago
5 0

Which of the following statements about hominin evolution is correct?

As hominins have evolved- a. sexual dimorphism was significantly reduced

Hominins are described as any species of early humans which are more closely related to humans than chimpanzees, including modern humans themselves. An example of hominin species is - Australopithecus afarensis

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A geneticist is studying two traits in the fruit fly - eye color and wing shape. They perform a dihybrid cross. If the genes for
Len [333]

Answer:

3/16

Explanation:

<u>According to Mendel's law of independent assortment of genes, when a dihybrid cross involves two genes that assort independently and one of the parents is dominant for the two genes and the other is recessive, the phenotypic ratio of the offspring at F2 would be 9:3:3:1</u>. The proportion of the offspring with the dominant parental traits would be 9/16, those with the recessive parental traits would be 1/16, while those with mixed traits would be 3/16 each.

Assuming the eye color is represented by E and the wing shape is represented by W. At F2

     EeWw    x    EeWw

E_W_ - 9/16 (dominant for both eye color and wing shape)

E_ww - 3/16 (dominant for eye color and recessive for wing shape)

eeW_ - 3/16 (recessive for eye color and dominant for wing shape)

eeww - 1/16 (recessive for both eye color and wing shape)

<em>Hence, the proportion of the offspring with dominant phenotype for eye color and recessive phenotype for wing shape would be </em><em>3/16.</em>

3 0
3 years ago
If the DNA code is CCA, what is the complementary mRNA code?
ELEN [110]

Answer:

The codon is the three nucleotide sequence in the mRNA that indicates which amino acid should be incorporated in the growing polypeptide chain. The anticodon is the complementary three nucleotide sequence in the appropriate tRNA.

6 0
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As the human population grows and countries continue to develop, the demand for large fish has been steadily increasing. Unfortu
seropon [69]

Answer:

The answer is D.

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The example given in the question is an example of gene flow which can be described as the movement of specific genes from the the gene pool population to population.

The act of catching the bigger fish and letting the smaller ones escape is changing the gene pool of the North East Arctic Cod and causing the next generations to have smaller and smaller sizes which is given as the genetic variation decrease due to gene flow.

I hope this answer helps.

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its the brain of the cell

Explanation:

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