Two true-breeding strains of corn with the genotypes cc and cc are crossed, where c = crunchy phenotype is dominant to c = soft phenotype. the resulting f1 corn are crossed, and the ratio of crunchy to soft phenotypes in the f2 generation is 3: 1. this is an example of:
a. non-disjunction.
b. a di-hybrid cross.
c. a mono-hybrid cross.
d. a test cross.
e. complementation.

The correct answer will be option-C

Explanation:

A mono-hybrid cross is a cross which is performed to study the pattern of inheritance involving or studying a single trait at a time.

In the given case, the trait studied is the texture of corn seed with two versions that are crunchy and soft phenotypes. The crosses made between them showed 3:1 ratio of crunchy to soft phenotypes in F₂ generation.

Since 3:1 ratio in F₂ generation is obtained in the monohybrid cross therefore, Option-C is the correct answer.

1. (1.2kw)x(15/60hours) = .3kwh --> a

2. (5kw)x(90/60hours)x(8cents/kwh) = $0.60 --> d

3. microwave --> 1200 watts = (1.2kw)x(6/60hours) = .12kwh

coffee-maker --> 900 watts = (.9kw)x(10/60hours) = .15kwh

therefore, it requires more energy for the coffee-maker to do the same amount of work.

so the answer is a.

option number one would be youre best option