Genetics Question Preview (ID: 22916)
DNA, Traits.
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What tool is used to determine the probability of offspring genotypes and phenotypes?
a) ladder
b) hammer
c) microscope
d) punnett square
What does phenotype mean?
a) physical feature
b) genetic combination
c) allele pairs
d) homozygous
What does heterozygous mean?
a) same
b) different
c) allele
d) DNA
Segments of DNA are called
a) traits
b) alleles
c) bases
d) genes
The language you speak is what type of trait?
a) physical
b) environmental
c) inherited
d) chromosomal
Human cells have how many chromosomes in them?
a) 1
b) 23
c) 46
d) impossible to tell
Where in a cell are chromosomes located?
a) cytoplasm
b) nucleus
c) vacuole
d) cell membrane
Eye color is an example of an
a) genetical trait
b) environmental trait
c) inherited trait
d) none of the above
People inherit traits from
a) offspring
b) siblings
c) parents
d) all of the above
A notable feature or quality is a
a) chromosome
b) base
c) allele
d) trait
Two types of traits are
a) inherited and environmental
b) genetical and environmental
c) physique and inherited
d) all of the above
How do the DNA bases pair up?
a) CT, AG
b) AT, CG
c) CG, TC
d) TA, CA
DNA is made of four bases. What letters represent the bases?
a) TCAX
b) CATU
c) ATCG
d) GACY
What does DNA stand for?
a) detoxyribonucleic acid
b) deoxyribonucleic acid
c) deoxyribbonucleic acid
d) deoxygenucleic acid
What shape is DNA?
a) strand
b) single helix
c) long
d) double helix
What type of letter represents a dominant allele?
a) lower case
b) upper case
c) A, T, C, or G
d) any type of letter
What does homozygous mean?
a) same
b) different
c) allele
d) phenotype
Which of the following is an example of a heterozygous genotype?
a) GG
b) Gg
c) gg
d) GG, gg
Which of the following is an example of a homozygous recessive genotype?
a) GG
b) Gg
c) gg
d) GG, gg
What happens when bases don't match up correctly?
a) alleles
b) genotypes
c) mutations
d) traits
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