Answer:
Good sources of protein in the diet include meat, poultry, fish, dairy products, eggs, legumes or pulses (beans, lentils and peas), and nuts. Many nutritionists recommend that we eat lean meats and low fat dairy if these foods are part of our diet. Our bodies can make some of the amino acids needed to make our body proteins, but we must obtain the others from our diet. The amino acids whic
Explanation:
Your answer is going to be when the rats grow up
Answer:
A) One-half of their daughters will have normal color vision and brown eyes; 1/2 of their daughters will have normal color vision and blue eyes.
Explanation:
<u>The genotypes and phenotypes are</u>:
- BB or Bb= brown eyes
- bb= blue eyes
- XᴰXᴰ, XᴰXᵈ (women) or XᴰY (men)= normal vision
- XᵈXᵈ (women) or XᵈY (men) = color blind
A woman has blue eyes (bb) and normal color vision (she has an Xᴰ chromosome) but her father was color-blind, so the other X chromosome she has carries the recessive d allele. She has the genotype bb XᴰXᵈ.
The man has normal color vision (he is XᴰY) and has brown eyes, but his mother had blue eyes so he must have inherited a b allele from her and is therefore heterozygous Bb. His genotype is BbXᴰY.
The blue/brown eyes gene is autosomal and independent from the sex-linked color blindness gene.
The woman can produce the gametes b Xᴰ and b Xᵈ.
The man can produce the gametes B Xᴰ, b Xᴰ, B Y and bY.
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<u>The female daughters can have the following genotypes and phenotypes:</u>
- Bb XᴰXᴰ brown eyes, normal color vision
- Bb XᴰXᵈ brown eyes, normal color vision
- bb Xᴰ Xᴰ blue eyes, normal color vision
- bb Xᴰ Xᵈ blue eyes, normal color vision
