Question

If a corn plant has a genotype SsTt, what are the possible genetic combinations that could be present in a single grain of pollen produced by the plant?


St, sT

Ss, Tt, ST, st

ST, st

ST, sT, St, st


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Answer 1

Answer:

answer is d

ST,sT,St,st

Answer 2

In corn plant, the genetic combinations present in a single grain of pollen produced by the plant with genotype SsTt are ST, St, sT, and st.

Explanation:

• The corn plant has genotype SsTt.
• When they are crossed the F1 generation will have the offspring as shown in the punnet square.
• The given genotype is a heterozygous mono-hybrid trait.
• When the cross is made between the given genotype, it will give the pollen grains with a genetic combination such as ST, St, sT, and st as shown in the figure.