Dr. Eric B. Sandoval is studying pea color in a new type of peaplant. He started

Question

Dr. Eric B. Sandoval is studying pea color in a new type of peaplant. He started by mating a pure breeding white pea with apure breeding white peas. All the F1 are green. WhenDr. Eric did the self cross the F1 green peas, he got the followingratios:
9 Green
6 White
1 Yellow

Dr. Eric sent off some of the F1 green peas to a friend (Dr. KayleeH. Helms) in Florida. When Kaylee does the same F1 selfcross, she got
9 Green
3 White
1 Yellow

1. (M T/F) This is an example of incomplete penetrance.

2. (M T/F) If Dr. Eric takes one of his F2 white peas and selfcrosses it, he can be sure he will not get green peas.

3. (MC) If Dr. Kaylee takes one of her F2 white peas at random, herchances of getting a pure breeding is which of the following
    a. all are pure breeding.
    b. none are pure breeding.
    c. 1 in 3 are pure breeding.
    d. 2 in 3 are pure breeding.
    e. cannot be determined from data given.

4. (MC) If Dr. Eric takes one of his F2 green peas and mated it toone of the parental white pea, he would expect:
    a. all to be green.
    b. to get all yellow.
    c. to get no white.
    d. none of the above
    e. cannot be determined from the data given.

5. For Kaylee’s cross, do the F2 branch for thephenotype groups.

9 Green
6 White
1 Yellow
9 Green
3 White
1 Yellow

Explanation / Answer

1. (M T/F) This is an example of incomplete penetrance.true

2. (M T/F) If Dr. Eric takes one of his F2 white peas and selfcrosses it, he can be sure he will not get greenpeas.false

3. (MC) If Dr. Kaylee takes one of her F2 white peas at random, herchances of getting a pure breeding is which of the following
    a. all are pure breeding.
    b. none are pure breeding.
    c. 1 in 3 are pure breeding.
    d. 2 in 3 are pure breeding.
    e. cannot be determined from datagiven.

4. (MC) If Dr. Eric takes one of his F2 green peas and mated it toone of the parental white pea, he would expect:
    a. all to be green.
    b. to get all yellow.
    c. to get no white.
    d. none of the above
    e. cannot be determined from the datagiven.

.

Related Questions

Navigate

• Browse (All)
• Browse D
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.