Question

In a monohybrid cross, if the gene for tall (T) plants was incompletely dominant over the gene for short (t) plants, what would be the predicted result of crossing two intermediate (Tt) parent plants? (Hint: You may want to complete a Punnett square.)

Answer 1

This question asks you about what possible phenotypes (that is, appearances) correspond to a heterozygous genotype (that is, genetic material).

When an allele (or variant of a gene) is completely dominant, just one copy of that allele will make the individual have the dominant phenotype. That is, if the gene is completely dominant, heterozygotes with just one copy of a dominant allele will look the same as homozygous dominant individuals with two copies of the allele.

Is that much clear?

Answer 2

thnk u

Answer 3

Cool, so the question asks, what happens when a gene is not completely dominant?

That is, the dominant allele produces some of whatever protein product it codes for - but not enough to produce an entirely dominant phenotype. Essentially, incomplete dominance is an "in between" phenotype where the offspring doesn't resemble either parent but is instead a mixing between them.