Inherited Traits/Punnett Squares Practice Question Preview (ID: 59027)
Review Questions About DNA, Inherited Traits, And Punnett Squares.
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How many chromosomes are present in a human cell nucleus?
a) 23 chromosomes or 46 pairs
b) 46 pairs or 92 chromosomes
c) 46 chromosomes or 23 pairs
d) 32 chromosomes or 16 pairs
Molecule that carries genetic instructions for all living organisms.
a) DNA
b) Genes
c) Chromosomes
d) Nucleus
A stretch of DNA with instructions for one trait.
a) Chromosome
b) Gene
c) Nucleus
d) DNA
The transfer of traits from one generation to the next.
a) Recessive trait
b) dominant trait
c) acquired trait
d) heredity
This is the Father of Modern Genetics.
a) Charles Darwin
b) James Watson
c) Gregor Mendel
d) Francis Crick
Traits that hide other traits when passed on to an offspring.
a) inherited traits
b) dominant trait
c) recessive trait
d) acquired trait
Shows its specific trait when both parents pass the gene to the child. (Need 2 to show up)
a) acquired traits
b) dominant traits
c) recessive traits
d) inherited traits
the physical traits of a person
a) genotype
b) phenotype
c) DNA
d) allele
On a Punnett Square two capital letters indicate a gene which is...?
a) homozygous dominant
b) homozygous recessive
c) heterozygous
d) none of the above
On a Punnett Square one lower case letter and one capital letter indicate a gene which is
a) homozygous dominant
b) homozygous recessive
c) heterozygous
d) none of the above
Choose the genotype that is homozygous.
a) Dd
b) TT
c) Tt
d) Mm
When completing a Punnett Square, where are the genotypes of the parents?
a) in the boxes
b) on the top and side
c) on one side
d) nowhere
When completing a Punnett Square, where do we put the genotypes of the offspring?
a) inside the boxes
b) on the top and side
c) on one side
d) nowhere
If a person has the genotype, Yy, which trait do we see? (Y=Yellow, y=blue).
a) yellow, since it is the dominant trait
b) blue, since it is the recessive trait
c) yellow, since it is the recessive trait
d) blue, since it is the dominant trait
Two parents have a heterozygous genotype (Bb) for eye color. The dominant allele (B) codes for brown eyes, while the recessive allele (b) codes for blue eyes. What is the chance of having a blue eye baby?
a) 25%
b) 50%
c) 75%
d) 100%
In dogs, the dominant allele (F) codes for grey fur and the recessive allele (f) codes for black fur. If you cross a female dog that is heterozygous and a male dog that is homozygous recessive, what % of the offspring will have grey fur?
a) 25%
b) 50%
c) 75%
d) 100%
What % of the offspring will have black fur if you cross a female dog with black fur (ff) with a male dog with black fur (ff)?
a) 25%
b) 50%
c) 75%
d) 100%
In dogs, deafness is caused by a recessive gene (d). A male dog named Gilbert, can hear (DD). If we bred Gilbert with a dog that was deaf. What % of the offspring would also be deaf?
a) 0%
b) 25%
c) 50%
d) 75%
A homozygous recessive short tailed cat (Tt) is bred with a heterozygous long tailed cat (Tt), what % of the offspring will have short tails and what % will have long tails?
a) 0% short tails, 100% long tails
b) 25% short tails, 75% long tails
c) 50% short tails, 50% long tails
d) 75% short tails, 25% long tails
Albino color in mice is a recessive trait, while brown color is dominant. If you cross a homozygous recessive albino mouse with a homozygous dominant brown mouse, what % of the offspring will be albino and what % will be brown?
a) 0% albino, 100% brown
b) 25% albino, 75% brown
c) 50% albino, 50% brown
d) 75% albino, 25% brown
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