A husband and wife both have normal skin pigmentation. Their first child is albino. Give the genotypes of the parents and of the albino child. Give the genotypes of the parents and of the albino child. What is the chance that if they have a second child, this child will not be albino? what is the chance that if they have a third child, this child will be albino?
2. A husband and wife both have normal skin pigmentation. Their first child is albino. Give the genotypes of the parents and of the albino child. Give the genotypes of the parents and of the albino child. What is the chance that if they have a second child, this child will not be albino? what is the chance that if they have a third child, this child will be albino?
3. translate the following sequence of messenger RNA
a. C-U-G-U-U-U-U-G-C-A-G-U-G-G-U-U
b. write the sequence of nucleotides for the portion of a DNA molecule that served as a pattern or template for the formation of the messenger RNA above.
c. A certain protein contains the following sequence of amino acids: isoleucine-serine-arginine-glutamic acid-serine-proline-valine-glutamic acid. Using the table found in your text, write the sequence of RNA triplet that would code for this sequence of amino acids. then write the sequence of DNA triplets that would code for the formation of RNA
4. In man, right-handedness (R) is dominant over left-handedness (r). A right-handed man whose mother was left-handed marries a right-handed woman whose father and two of his three sisters are left-handed. What chances will the children of this marriage have of being left-handed?
5. In summer squash, white fruit (W) is dominant over yellow (w), and disc shape (D) is dominant over sphere shape (d). In a cross between a squash plant homozygous for yellow fruit color and disc fruit shape, and one homozygous for white fruit color and sphere shape, what will be the appearance as to the color and shape of the fruit. Of the F1 generation? Of the F2 generation? Of the offspring of a cross of the F1 back of the yellow disc parent? On the white sphere parent?
6. What are the gametes formed by the following squash plants, and what will be the appearance of the offspring from each cross?
a. WWdd x wwDD
b. WwDd x Wwdd
c. WwDD x wwdd
d. WwDd x wwdd
e. WwDd x WwDD
f. WwDd x WWDd
7. Two normal appearing parents produce a child suffering from sickle-cell anemia. What is the chance that the next child will also have this anemia?
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