Two crosses between the same pair of genotypes or phenotypes in which the sources of the gametes are reversed in one cross, is known as:
Correct answer: B. Reciprocal cross
- A. Test cross
- B. Reciprocal cross
- C. Dihybrid cross
- D. Reverse cross
Explanation
A test cross is used to determine the genotype of an individual with a dominant phenotype by crossing it with a known homozygous recessive individual. A reciprocal cross involves performing two crosses between the same genotypes or phenotypes but reversing the sources of gametes in one of the crosses. This is often used to test for sex-linked inheritance or parental effects. A dihybrid cross is a genetic cross involving two individuals heterozygous for two different genes to study the inheritance of both traits simultaneously. "Reverse cross" is not a recognized term in genetics. In the context of your question, the correct answer is "b. Reciprocal cross." It's an important tool in genetics to explore the effects of parental contributions in different ways and is not related to the other options provided.
Last updated
About Inheritance
Mendel's laws explain segregation, independent assortment and the prediction of genetic ratios using alleles, genotypes and phenotypes. The chapter also covers linked genes, recombination and crossing over during meiosis, then applies pedigree reasoning to X-linked recessive traits, which show different inheritance patterns in males and females.
Practise Inheritance
1,238 free Inheritance MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Biology questions like this
Biology is on 6 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
4 Mutations in opsin genes cause_ types of colorblindness.
9 : 3 : 3 : 1 ratio is given by:
A bald man marries to pattern bald woman. The chance of baldness in their daughter is:
A botanist sees that when he breeds a plant with blue flowers and a plant with red flowers, the resulting generation are plants with a 1:1 ratio of blue: red flowers. He knows that the two parents are homozygous for the trait of color. What phenomenon most likely explains the 1:1 ratio in the filial generation?
A carrier female for hemophilia can pass the defective allele to: