The situation when two alternative forms are expressed completely is said to have:

Correct answer: A. Codominance

  • A. Codominance
  • B. Sex-influenced traits
  • C. Multiple alleles
  • D. Incomplete dominance
  • E. Sex-limited traits

Explanation

Codominance is a genetic scenario where both alleles in a heterozygous individual are fully expressed, leading to a phenotype that exhibits traits from both alleles. For instance, in certain flowers, one allele may be responsible for producing red petals while another produces white petals; in the case of codominance, the resulting flowers can display both red and white petals concurrently.

Written and checked by , contributorLast updated
Report an error

The more specific you are, the faster it gets fixed. A source beats an opinion.

Prefer email? [email protected]

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.

Discussion

Stuck on an option, or know a faster way to get there? Ask or explain it here.

No comments yet. Be the first to explain this one.

Exams that ask Biology questions like this

Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.

More Inheritance questions