Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Punnett Square Practice Worksheet
1) For each of the genotypes (AA, Aa or aa) below determine what the
phenotype would be.
Purple flowers are dominant to white flowers.
PP
Hairy knuckles are dominant to non-hairy knuckles in humans.
HH
Pp.
p.
Hh
hh
Bobtails in cats are recessive. Normal tails are dominant.
TT
Tt
tt
2) For each of the following write whether it is homozygous dominant (HD),
heterozygous (H), or homozygous recessive (HR).
AA
gg
Ii
Pp
t
TT
Use the following information for questions 3-5:
In dogs, the gene for fur color has two autosomal alleles. The dominant allele (F)
codes for grey fur and the recessive allele (f) codes for black fur. Consider the 3
following cases:
3) The female dog is heterozygous. The male dog is homozygous recessive.
Figure out the percentage or ratio of possible genotypes and phenotypes of
their puppies by using the Punnett Square below.
Place the alleles for the male parent
below. One allele on each line:
% of possible Genotypes:
FF:
Place the alleles for the
female parent on the
side. One allele on
each line.
Ff:
ff:
% of possible Phenotypes:
Black fur:
Grey fur:
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Transcribed Image Text:Name: Date: Punnett Square Practice Worksheet 1) For each of the genotypes (AA, Aa or aa) below determine what the phenotype would be. Purple flowers are dominant to white flowers. PP Hairy knuckles are dominant to non-hairy knuckles in humans. HH Pp. p. Hh hh Bobtails in cats are recessive. Normal tails are dominant. TT Tt tt 2) For each of the following write whether it is homozygous dominant (HD), heterozygous (H), or homozygous recessive (HR). AA gg Ii Pp t TT Use the following information for questions 3-5: In dogs, the gene for fur color has two autosomal alleles. The dominant allele (F) codes for grey fur and the recessive allele (f) codes for black fur. Consider the 3 following cases: 3) The female dog is heterozygous. The male dog is homozygous recessive. Figure out the percentage or ratio of possible genotypes and phenotypes of their puppies by using the Punnett Square below. Place the alleles for the male parent below. One allele on each line: % of possible Genotypes: FF: Place the alleles for the female parent on the side. One allele on each line. Ff: ff: % of possible Phenotypes: Black fur: Grey fur:
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