Genetics Review Question Preview (ID: 50145)
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_________ is considered the father of modern Genetics
a) Gregory Munchowser
b) Alfred Wegner
c) Albert Einstein
d) Gregor Mendel
Which of the following is NOT TRUE of DNA
a) It stands for DeoxyRiboNucleic Acid
b) Humans have 72 strands of it in every cell
c) It contains the genetic code that gets passed from parents to offspring
d) It is found in the nucleus of all eukaryotic cells
The genotype GG means the organisms _______ for that trait
a) Homozygous
b) Heterozygous
c) A hybrid
d) Recessive
Which of the following is true of the genotype Gg?
a) It is homozygous
b) It is considered a purebred
c) It would show the dominant phenotype
d) It would show the recessive phenotype
Tall plants are dominant to short. That means:
a) T equals tall, and s equals short
b) t equals tall and s equals short
c) Both TT and Tt genotypes would be tall
d) tt would be homozygous for the tall trait.
Incomplete Dominance occurs when :
a) Both alleles are present in the offspring
b) the alleles blend together to make an entirely new phenotype
c) Both alleles try to maintain dominance
d) One trait clearly masks the presence of another
If Maggie is a purebred for blue skin, which is a recessive trait to Yellow, what is her genotype?
a) bb
b) Bb
c) yy
d) Yb
if you cross 2 heterozygous parents, how many of the offspring will exhibit the recessive allele?
a) 0%
b) 25%
c) 50%
d) 100%
Cross between one heterozygous parent and a Purebred Dominant will yield how many offspring with the recessive trait
a) 0%
b) 25%
c) 50%
d) 100%
Which of the following is not true of mitosis?
a) IT is used for asexual reproduction
b) It results in 2 identical daughter cells
c) Body cells use it for growth and repair
d) It results in 4 genetically different cells called gametes
A strand of DNA coiled tightly around a protein is called
a) A base pair
b) A gene
c) A chromosome
d) CRISPR
Genetic Variation in offspring is a result of ______
a) Sexual Reproduction
b) Mitosis
c) Genetic Engineering
d) Selective Breeding
Dog breeds, large corn kernels and beefy cattle are all a result of ______
a) Natural Selection
b) Genetic Engineering
c) Selective Breeding
d) Asexual Reproduction
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