Question

A student encounters a plant bearing small, purple flowers in the wild. The size of the flowers and the purple color are determined by two separate genes. The genes for both small size (S) and purple color (P) are dominant to large size (s) and white color (p), respectively. The student wants to determine the genotype of the newly isolated plant. Crossing to which of these plants would provide the most information in one generation?
A. SSPP
B. SsPp
C. sspp
D. SSpp

Answer 1

Answer:

The answer is C.

Explanation:

Answer 2

Answer:

C. sspp

Explanation:

• Crossing a plant of an unknown genotype with the one that is homozygous recessive for that gene is useful for revealing the unknown genotype and this is known as a test cross.
• The result of the test cross can reveal whether the organism's genotype.
• If the offspring of the cross shows dominant phenotype then the parent must be homozygous dominant and if the offspring shows recessive phenotype then the parent must be heterozygous.