Genetics Question Preview (ID: 16407)
Genetics.
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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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