HEREDITY
MONOHYBRID CROSS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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1FF:3 Ff:1 ff
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1 FF:2Ff:1 ff
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2 FF:2 Ff
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3Ff:1 ff
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Detailed explanation-1: -A monohybrid cross results in a phenotypic ratio of 3:1 (dominant to recessive), and a genotypic ratio of 1:2:1 (homozygous dominant to heterozygous to homozygous recessive).
Detailed explanation-2: -In the monohybrid cross, a testcross of a heterozygous individual resulted in a 1:1 ratio. With the dihybrid cross, you should expect a 1:1:1:1 ratio!
Detailed explanation-3: -A cross of two F1 hybrids, heterozygous for a single trait that displays incomplete dominance is predicted to give a 1:2:1 ratio among both the genotypes and phenotypes of the offspring.
Detailed explanation-4: -SEE A PATTERN FOR HETEROZYGOUS MONOHYBRID CROSSES: If you cross 2 parent plants that are BOTH HETEROZYGOUS for a trait the offspring will show a 3:1 phenotypic ratio. 75 25 % of the offspring will show the DOMINANT trait and % of the offspring will show the RECESSIVE trait.