Genetics Question Preview (ID: 16407)


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Which of the following would be homozygous?
a) BB
b) bb
c) Both
d) Neither

Which of the following would heterozygous?
a) Bb
b) BB
c) bb
d) None of the above.

What is the structure that contains a cells genetic material and determines an organisms trait?
a) Hybrid
b) Purebred
c) Genotype
d) Chromosome

What is the physical appearance for a trait?
a) Genotype
b) Phenotype
c) Gen
d) Allele

How many tall pea plants would be expected with a cross between 2 heterozygous (Tt) pea plants?
a) 75%
b) 50%
c) 25%
d) 0%

How many tall plants would be expected if a hybrid tall plant is crossed with a short plant(tt)?
a) 0%
b) 25%
c) 50%
d) 75%

The allele that is hidden if dominant is present..
a) Dominant
b) Recessive
c) Both
d) Neither

What is the basic unit of heredity, contains DNA?
a) Homozygous
b) Phenotype
c) Genotype
d) Gene

What percent of alleles does each parent contribute to their offspring?
a) 0%
b) 25%
c) 50%
d) 75%

If 2 homozygous recessive plants are crossed, how many tall plants would be expected?
a) 0%
b) 25%
c) 50%
d) 100%

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