The parents are of genotype heterozygous dominant and homozygous recessive. Supposing the dominant allele is N and the recessive allele is n, one of the parents will be Nn while the other nn. The phenotypic (based on visible characteristics) ratio will be 1:1 for dom/rec and rec/rec as indicated in the diagram below.

5 0

2 years ago

Passive transpoet is the movement of particulars across the membrane from area of what to an area of what

diamong [38]

Answer:

Passive transport is the movement of particulars across the membrane from area of high to an area of low concentration.

Explanation:

Passive transport is a transmembrane cellular transport mechanism characterized by the fact that it does not require energy.

What enables passive transport is the concentration gradient of a particle, which moves across the membrane from a site of high concentration to a site of low concentration.

Two known forms of passive transport are simple diffusion and facilitated diffusion.

6 0

3 years ago