Biology, 30.07.2020 20:01 bella2017

In garden peas, the yellow seed trait is dominant over green seeds. Also, the round seed trait is dominant over the wrinkled-seed trait. These genes are on separate chromosomes. Suppose that two plants that are heterozygous for both traits are crossed and 720 offspring are produced. About how many progeny will be yellow with round seeds

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Answer from: tiara0

405 individuals will be yellow and round seeded.

Explanation:

Available data:

the yellow seed trait is dominant over green seedsround seed trait is dominant over the wrinkled-seed traitThese genes are on separate chromosomes

Let´s name the seed color genes Y, and the seed shape gene R

Y is the dominant allele for seed color expressing yellowy is the recessive allele for seed color expressing greenR is the dominant allele for seed shape expressing roundr is the recessive allele for seed shape expressing wrinkled

Cross: between two plants that are heterozygous for both traits

Parental) Yy Rr x Yy Rr

Gametes) YR yR Yr yr YR yR Yr yr

Punnet Square) YR yR Yr yr

YR YYRR YyRR YYRr YyRr

yR YyRR yyRR YyRr yyRr

Yr YYRr YyRr YYrr Yyrr

yr YyRr yyRr Yyrr yyrr

F1) 720 individuals

9/16 yellow and round seeded individuals, Y-R-

3/16 green and round seeded individuals, yyR-

3/16 yellow and wrinkle seeded individuals, Y-rr

1/16 green and wrinkle seeded individuals, yyrr

Note: the "-" symbol in the phenotypes means that there it could be either a dominant or recessive allele.

If 720 is the total number of individuals in the F1, then:

16 possible genotypes 100% of the progeny 720 individuals

9 yellow and rounded 56.25% 405 individuals

3 green and rounded18.75%135 individuals

3 yellow and wrinkled18.75%135 individuals

1 green and wrinkled6.25%45 individuals

Answer from: Quest

answer; ///(statins)/aka as hmg coa

Answer from: Quest

mountains can affect the climate of nearby lands. in some areas, mountains block rain, so that one side of a mountain range may be rainy and the other side may be a desert. much of airborne moisture falls as rain on the windward side of mountains.

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