If black and white true breeding mice are mated and they result is all gray offspring, what inheritance pattern would this be indictive of ?
Correct answer: D. Incomplete dominance
- A. Dominance
- B. Co dominance
- C. Multiple alleies
- D. Incomplete dominance
Explanation
Codominance means that no allele can block or mask the expression of the other allele. While incomplete dominance is a condition in which a dominant allele does not completely mask the effects of a recessive allele so the correct option is D as black and white parents produce gray offsprings
This question appeared on the ETEA MDCAT 2017 paper, which you can sit online with every answer explained.
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About Mendel's Laws of Inheritance
Mendelian inheritance explains how alleles separate into gametes and assort during reproduction, producing predictable genotype and phenotype ratios. Questions cover dominance, recessiveness, homozygous and heterozygous conditions, the laws of segregation and independent assortment, monohybrid and dihybrid crosses, test crosses and the limits caused by linked genes.
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