Question

There are two types of pea plants: those that produce round seeds and those that produce wrinkled seeds. A single gene controls which type of seed a pea plant will produce.

An experiment shows that pea plants containing an allele for round seeds will always produce round seeds.

Based on this information, we can conclude that the allele for round seeds in pea plants is _______.
A. recessive
B. dominant
C. homozygous
D. heterozygous

Answer 1

In pea plants round seeds are dominant to wrinkled. So to have round seeds you either will have two dominant alleles (homozygous dominant) or one dominant and one recessive allele (heterozygous)

Answer 2

round seeds suppresses the wrinkled one....it does't mean the absence of wrinkled one...... there is the possibility of dominant homozygous.....n there is the possibilities of heterozygosity ......so there is wrinkled one also.....