In poultry, two genes, R and P, control the shape of the comb on the head. The following genotype/phenotype relationship applies to these two genes: R- P- animals have a 'walnut' comb; R- pp animals have a 'rose' comb; rr P- animals have a 'pea' comb; rr pp animals have a 'single' comb. What will the comb phenotypes of the progeny be for a cross of rr PP X rr Pp animals

100% of the progeny will have a pea comb, rrP-

Explanation:

Available data:

Cross:

Parentals)      rrPP          x        rrPp

Gametes) rP, rP, rP, rP        rP, rP, rp, rp

Punnett square)     rP     rP      rP      rP

                    rP    rrPP   rrPP   rrPP  rrPP

                    rP    rrPP   rrPP   rrPP  rrPP

                    rp    rrPp   rrPp   rrPp   rrPp

                    rp    rrPp   rrPp   rrPp   rrPp

F1) Genotype

    Phenotype

    16/16 = 100% of the progeny will have a pea comb

correct answer: biotic and abiotic limitations

carrying capacity is defined as the total number of an organism who can be supported in a given area within the natural resources limit and without harming or degrading the natural, economic or the cultural environment present for the future generations.

carrying capacity is determined by the limiting factors, which are known to affect the natural resources available. it may include water, nutrients, minerals, space, light etc.

explanation:

hope this ! have a wonderful day!

the major parts of the digestive system:

salivary glands.

pharynx.

esophagus.

stomach.

small intestine.

large intestine.

rectum.

accessory digestive organs: liver, gallbladder, pancreas.