Answer:the probability of their first two offspring being aa is 0.25
Explanation:
Because their are 4 possible genotypes for the offsprings
AA Aa Aa aa
And the probability of aa is 1/4
Answer: B) are excited by light that falls in the center of their receptive field.
Explanation:
There are two types of bipolar cells present in the retina which are differentiated on the way the centres of their receptive fields respond to light. The names of bipolar cells are ON-centre and OFF-centre.
If a light fall at the centre of the receptive field of a bipolar cell, it will experience an exciting effect on that cell, resulting in it being depolarized, it is an ON-center cell.
Hence, the correct option is B.
Answer: D) constructive process
Explanation:
Deposition is the geological <u>process</u> in which sediments, soil and rocks are <u>added</u> to a landform or land mass. Wind, ice, water, and gravity transport previously weathered surface material, which, at the loss of enough kinetic energy in the fluid, is deposited, <u>building up</u> layers of sediment.
Answer:
I think it explains that the DNA molecules are double helix with alenine and thymine paired together