What experimental apparatus has been used to study depth perception in infants?

1 answer:

3 0

The answer is visual cliff. This apparatus was shaped by psychologists Eleanor J. Gibson and Richard D. Walk at Cornell University to examine depth perception in human and animal species. This apparatus permitted them to experimentally adjust the optical and tactical stimuli associated with a simulated cliff while protecting the subjects from injury. The visual cliff consists of a sheet of glass with a patterned cloth under it to simulate the appearance of a cliff.

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In rabbits, short hair(S) is dominant over long hair(s). What genotype and phenotype ratios are expected from a cross between tw

SOVA2 [1]

Answer:

Genotype Phenotype

SS 1/4 Short hair 3/4

Ss 2/4 Short hair 3/4

ss 1/4 Long hair 1/4

Explanation:

Both are heterozygous for the trait so we can expect that the cross would be:

Ss x Ss

S s

S SS Ss

s Ss ss

So the resulting off-spring would have the following genotype and phenotype:

1 out of 4 will have a genotype of SS.

2 out of 4 or half will have a genotype of Ss.

1 out of 4 will have a genotype of ss.

But because short hair is dominant the phenotype ratios would differ because Ss and SS would express short hair, so we add up their ration:

Short hair: 1/4 + 2/4 = 3/4

Long hair: 1/4

So in summary:

Genotype Phenotype

SS 1/4 Short hair 3/4

Ss 2/4 Short hair

ss 1/4 Long hair 1/4

5 0

3 years ago

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Telophase is a stage of a cellular process that begins after the chromosomes have moved to opposite poles of the cell. During wh

Dmitry [639]

Answer - D. Mitosis (Confidently Correct)

Reasoning - Its basically the process when the chromosomes move during the ends of each section. Until then it becomes closed into a new cell.