Question

1. One pure strain of pea plants developed by Mendel had yellow peas and another strain had green peas. All the offspring from crosses between the two parental strains (P) of plants had yellow peas. In these plants, what is the allele for yellow pea color (dominant or recessive)? 2. How many different kinds of eggs are produced by the F? offspring from a cross between a pure strain of plants with yellow peas and a pure strain of plants with green peas? 3. A woman without dimples mates with a man who has dimples and who is known to be heterozygous for the trait. What is the chance that their first child will have dimples? 4. If the first child of the couple in question 3 had dimples what is the chance that their second child will have dimples? 5. In Mendel's crosses beginning with two pure strains of pea plants, one with yellow peas (YY) and the other with green peas (yy), the test cross was done between F? offspring with yellow peas and a pure strain of plants with what genotype? 6. The allele for black hair color (B) is dominant over the allele for white hair color (b) in guinea pigs. A test cross between a black female and a white male produced a liter of six black guinea pigs. What is the genotype of the mother? 7. When a pure strain of tall plants (TT) with round peas (RR) is crossed with a pure strain of short plants (tt) with wrinkled peas (rr), an F? generation is produced. The alleles for short and wrinkled are recessive to those for tall and round, respectively. When these F? plants self-pollinate, what proportion of the F? generation is short with wrinkled peas? 8. A trihybrid cross is made between two yeasts, both with genotypes AaBbCc. What proportion of the offspring will be of the genotype aabbcc? 9. What is the probability of obtaining an offspring that is AABbCc from parents that are AaBbCC and AABbCc?

1. One pure strain of pea plants developed by Mendel had yellow peas and another strain had green peas. All the offspring from crosses between the two parental strains (P) of plants had yellow peas. In these plants, what is the allele for yellow pea color (dominant or recessive)?

2. How many different kinds of eggs are produced by the F? offspring from a cross between a pure strain of plants with yellow peas and a pure strain of plants with green peas?

3. A woman without dimples mates with a man who has dimples and who is known to be heterozygous for the trait. What is the chance that their first child will have dimples?

4. If the first child of the couple in question 3 had dimples what is the chance that their second child will have dimples?

5. In Mendel's crosses beginning with two pure strains of pea plants, one with yellow peas (YY) and the other with green peas (yy), the test cross was done between F? offspring with yellow peas and a pure strain of plants with what genotype?

6. The allele for black hair color (B) is dominant over the allele for white hair color (b) in guinea pigs. A test cross between a black female and a white male produced a liter of six black guinea pigs. What is the genotype of the mother?

7. When a pure strain of tall plants (TT) with round peas (RR) is crossed with a pure strain of short plants (tt) with wrinkled peas (rr), an F? generation is produced. The alleles for short and wrinkled are recessive to those for tall and round, respectively. When these F? plants self-pollinate, what proportion of the F? generation is short with wrinkled peas?

8. A trihybrid cross is made between two yeasts, both with genotypes AaBbCc. What proportion of the offspring will be of the genotype aabbcc?

9. What is the probability of obtaining an offspring that is AABbCc from parents that are AaBbCC and AABbCc?

1. One pure strain of pea plants developed by Mendel had yellow peas and another strain had green peas. All the offspring from crosses between the two parental strains (P) of plants had yellow peas. In these plants, what is the allele for yellow pea color (dominant or recessive)?

2. How many different kinds of eggs are produced by the F? offspring from a cross between a pure strain of plants with yellow peas and a pure strain of plants with green peas?

3. A woman without dimples mates with a man who has dimples and who is known to be heterozygous for the trait. What is the chance that their first child will have dimples?

4. If the first child of the couple in question 3 had dimples what is the chance that their second child will have dimples?

5. In Mendel's crosses beginning with two pure strains of pea plants, one with yellow peas (YY) and the other with green peas (yy), the test cross was done between F? offspring with yellow peas and a pure strain of plants with what genotype?

6. The allele for black hair color (B) is dominant over the allele for white hair color (b) in guinea pigs. A test cross between a black female and a white male produced a liter of six black guinea pigs. What is the genotype of the mother?

7. When a pure strain of tall plants (TT) with round peas (RR) is crossed with a pure strain of short plants (tt) with wrinkled peas (rr), an F? generation is produced. The alleles for short and wrinkled are recessive to those for tall and round, respectively. When these F? plants self-pollinate, what proportion of the F? generation is short with wrinkled peas?

8. A trihybrid cross is made between two yeasts, both with genotypes AaBbCc. What proportion of the offspring will be of the genotype aabbcc?

9. What is the probability of obtaining an offspring that is AABbCc from parents that are AaBbCC and AABbCc?

Added by Mark Z.

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