Genetics Question Preview (ID: 58777)
Unit 6.
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What is the name of the twisted ladder shape of DNA?
a) Double helix
b) Helix
c) Roller coaster
d) Bill NyeWhat
What does DNA stand for
a) deoxyribonucleic acid
b) deriboxynucleic acid
c) detoxicnoxyic acid
d) none of these
How many chromosomes are in MOST human cells?
a) 46
b) 23
c) 92
d) 184
If snails have 24 chromosomes in most of their cells? How many chromosomes are in their body cells?
a) 24
b) 12
c) 6
d) 48
If snails have 24 chromosomes in most of their cells? How many chromosomes are in their sex cells?
a) 12
b) 6
c) 24
d) 48
Which type of cell reproduction results in new cells?
a) Both asexual and sexual
b) Asexual
c) Sexual
d) Double
Which type of cell reproduction results in offspring identical to parents?
a) Asexual
b) Sexual
c) Both asexual and sexual
d) Identical
Which type of cell reproduction involves two cells joining together to make one new cell??
a) Sexual
b) Asexual
c) Both asexual and sexual
d) BOGO
A baby has a pair of X chromosomes (XX) for its 23rd pair. What is the sex of the baby?
a) Girl
b) Boy
c) You can't tell
d) It will be an alien
A girl can roll her tongue (Rr) What is her genotype for this trait?
a) Rr
b) rr
c) RR
d) tongue roller
A girl can roll her tongue (Rr) What is her phenotype for this trait?
a) Tongue roller
b) Non-tongue roller
c) Rr
d) RR
Which statement is true about the girl who can roll her tongue (Rr)?
a) She is homozygous recessive for this trait.
b) She is heterozygous dominant for this trait.
c) She is heterozygous for this trait.
d) She is weird.
What does the word pheno mean
a) to appear
b) different
c) same
d) to begin
What does the root hetero mean?
a) different
b) same
c) to appear
d) to begin
There is a pair of twins that includes 1 boy and 1 girl. Which statement(s) must be true?
a) They are fraternal twins
b) They are identical twins
c) One is fraternal and one is identical
d) They are neither fraternal or identical
What letter would represent the part on the DNA ladder that matches with G??
a) C
b) A
c) G
d) T
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