AaBB: AB, aB
aaBB: aB, aB
AAbb: Ab, Ab
Related Questions:
- Write the differences between:
- Name sources of variation.
- Give examples of artificial selection.
- Two white sheep produce a black offspring. What must the parents’ genotype for colour be? What is the probability that the next offspring will be black?
- The diagram shows two varieties of moths in England.
- Among the following genotypes, which ones are heterozygous and which are homozygous? Which of the genotypes have the same phenotype?
- In rabbits, the allele for dark fur, R, is dominant to the allele for white fur, r.a. Label the phenotypes and genotypes of the rabbits in the crosses.b. Explain the law to which these crosses belong.
- Differentiate between genotype and phenotype.
- What is meant by polygenic inheritance? Give an example.
- Explain why males are more likely to inherit X-linked disorders.
- What is a test cross? Explain its significance.
- How does crossing over contribute to genetic diversity?
- How do genes control inheritance of characters?
- Explain the composition of chromatin material.
- Give an account of genes and alleles.
- Describe the role of genes in protein synthesis.
- State and explain Mendel’s law of segregation.
- State and explain Mendel’s law of independent assortment.
- What is co-dominance? Explain with reference to the ABO blood group system.
- Explain incomplete dominance.