During the mating season, a certain type of lizard will bob its head up and down while displaying a colourful throat patch. These lizards prefer to find mates that bob their heads fast (dominant) instead of slow (recessive), and that have a red throat patch (dominant) instead of a yellow one (recessive). A male lizard heterozygous for head bobbing and homozygous dominant for throat patch mates with a female also heterozygous for head bobbing but homozygous recessive for throat patch.a) give the alleles (using proper notation) and the genotypes of the parent lizards. [2]b) show a Punnett Square for this cross. Remember: find the gametes first, so you know how big to make the Punnett Square (hint: it is NOT 4 x 4!) [2]c) What ratio of offspring have the preferred fast/red phenotype? [1]d) What percent of the young will not get mates because they have slow head bobbing and yellow throats? [1]e) what percent of the young will have trouble finding mates because they lack one of the dominant traits? [1]

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Description: During the mating season, a certain type of lizard will bob its head up and down while displaying a colourful throat patch. These lizards prefer to find mates that bob their heads fast (dominant) instead of slow (recessive), and that have a red thro

Let us suppose that fast head bobbing is denoted by F allele and slow recessive is by f allele.…

Answered: During the mating season, a certain…

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During the mating season, a certain type of lizard will bob its head up and down while displaying a colourful throat patch. These lizards prefer to find mates that bob their heads fast (dominant) instead of slow (recessive), and that have a red throat patch (dominant) instead of a yellow one (recessive).

A male lizard heterozygous for head bobbing and homozygous dominant for throat patch mates with a female also heterozygous for head bobbing but homozygous recessive for throat patch.

a) give the alleles (using proper notation) and the genotypes of the parent lizards. [2]
b) show a Punnett Square for this cross. Remember: find the gametes first, so you know how big to make the Punnett Square (hint: it is NOT 4 x 4!) [2]
c) What ratio of offspring have the preferred fast/red phenotype? [1]
d) What percent of the young will not get mates because they have slow head bobbing and yellow throats? [1]
e) what percent of the young will have trouble finding mates because they lack one of the dominant traits? [1]

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