In a particular breed of cattle, a black coat is dominant over a red coat. If a cow with a red coat is crossed with a black bull that is heterozygous for coat color, what percentage of their offspring would you expect to be black?
25
50
75
100
1. B
2. B
3. C
4. A
5. D
6. D
7. C
8. Alleles
9. Mitosis
10. Meiosis
11. Incomplete dominance
12. Chromosomes
13. Reproduce
Do 14-16 on your own.
Hope this helped
Thanks Hi, I Got 100%!
12 is DNA but the rest is right
75%
Are they right
Is hi right
(My answers have ** beside them. If I get any wrong, I'm so sorry!)
1) A dog is trained to sit and shake hands. These traits are most likely
A. Inherited
B. Not inherited**
C. Not acquired
D. Innate
====================
2) In a particular breed of cattle, a black coat is dominant over a red coat. If a cow with a red coat is crossed with a black bull that is heterozygous for coat color, what percentage of their offspring would you expect to be black?
A. 25%
B. 50%
C. 75%** (not good at punnet squares and such please don't blame me if you get the incorrect answer.)
D. 100%
====================
3) A cow that is heterozygous for the black coat allele is crossed with a bull that is homozygous for the red coat allele. Which of the following Punnett squares represents this cross?
A. B B
b Bb Bb
b Bb Bb
B. B b
B BB Bb
b Bb bb
C. B b**
b Bb bb
b Bb bb
D. B b
B BB Bb
B BB Bb
==============
4) What is a mutation?
(lazy to write all the answers from here I'm just writing the one that I think is the answer.)
A. A mutation is a permanent change in the order of bases in DNA.**
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5) In humans, having dimples is a dominant trait. In order for a child to have dimples
D. at least one parent must have dimples and pass on the dominant allele.**
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6) A scientist is studying a plant species in which flower color genes are codominant. The scientist crosses a plant with red flowers and a plant with white flowers. The offspring will most likely have
D. red flowers with white patches**
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7) In order for a child to inherit a recessive genetic disease, like sickle cell anemia, healthy parents must both
C. be carriers of the mutated gene that causes the disease.**
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For 8 through 13 there should be a glossary in your lesson! Do 14 and 15 by yourself. Feel free to check my work. ^^
-Sincerely,
OH BOY
It’s dna for 12
@Abbie lol just accept the answers and use them. If you would've liked an explanation than go back to previous lessons.
i dont understand i have a 16 question test but its not set up like they are saying!!! is the lesson called "introduction to genetics unit test"?????
HELP PLEASE