Question

SSLP4 and SSLP1 are dimorphic markers that are normally maintained in two pure lines, each containing one allele for each marker. The lines were crossed, and the F1 grown up. When two F1 fish are test crossed, what proportions should we expect in the test cross progeny for the various combinations of SSLP alleles? (in order; a zero means we shouldn't see that combination, and that F2 should be a G2)

a) 0:0:0:0:1:1:0:1:1

b) 1:0:1:10:1:1:0-1

c) 9:9:3:33:33:1:1

d) 1:2:1:2:4:2:1:2:1

answer is 1:2:1:2:4:2:1:2:1 .please.. give your explanation about this answer? ​

Answer 1

Answer:

d is your answer in F2 generation the genotypic ratio is 1:2:1:2:42:1:2:1

Answer 2

Answer:

SSLP4 and SSLP1 are dimorphic markers that are normally maintained in two pure lines, each containing one allele for each marker. The lines were crossed, and the F1 grown up. When two F1 fish are test crossed, what proportions should we expect in the test cross progeny for the various combinations of SSLP alleles? (in order; a zero means we shouldn't see that combination, and that F2 should be a G2)

a) 0:0:0:0:1:1:0:1:1

b) 1:0:1:10:1:1:0-1

c) 9:9:3:33:33:1:1

d) 1:2:1:2:4:2:1:2:1

Explanation:

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