Answer:
Genotype ratio = 1 X^hX : 1 XX : 1 X^hY : 1 XY
Phenotype ratio = 2 normal daughters : 1 affected son : 1 normal son
Explanation:
Given that the father of the woman has hemophilia, the father must have transferred the allele for hemophilia (let us assume "h") to her. This makes the woman carrier for the disease (genotype = X^hX). The genotype of the normal man would be "XY".
A cross between carrier woman and normal man would obtain 2 normal daughters, 1 affected son and 1 normal son.
Genotype ratio = 1 X^hX : 1 XX : 1 X^hY : 1 XY
Phenotype ratio = 2 normal daughters : 1 affected son : 1 normal son
Answer:
pyramid of energy
Explanation:
An energy pyramid is a graphical flow in a community.The different levels represents different groups of organisms that might compose a food chain, from the bottom to the top.
¿What are invertebrates?
Invertebrates are unicellular or multicellular organisms that present a great variety of habits and morpho-functional patterns.
Which are classified into :-
Anthropods, molluscs, worms, echinoderms, coelenterates, and porifera.
I hope I've helped : )
Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).
Increasing melanin production.
Good luck! (:
~ Jasmine
