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TiliK225 [7]
3 years ago
13

Phytoplankton play an important role in which of the following biogeochemical cycles? the nitrogen cycle the phosphorus cycle th

e rock cycle
Biology
1 answer:
maksim [4K]3 years ago
8 0
Between the 2 elements, nitrogen and phosphorus the element abundant in the ocean is the answer
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Gregor Mendel crossed true-breeding plants with green pea pods with true-breeding plants with yellow pea pods. The resulting F1
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Answer:

A. Mendel observed green and yellow pea pods in a 3:1 ratio because the F1 generation was heterozygous.

Explanation:

The two true breeding plants in the parental population were homozygous (that is what true breeding means). Therefore, their cross would lead to all heterozygous offspring (see attached punnet square). Green is the dominant characteristic, so all F1 plants had a green phenotype, but Gg genotype.

The F1 cross would therefore be Gg x Gg. See attached punnet square.

The genotypes in the F2 generation are 1 GG: 2 Gg: 1 gg 1

Therefore, the phenotypic ratio is 3 green pea pods (Gg or GG): 1 yellow (gg)

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