Genetics Question Preview (ID: 31934)
A Review Of Transcription, Translation, DNA Replication And Mendelian Genetics.
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RNA does not have ___________ , but has ___________.
a) thymine (T), uracil (U)
b) thymine (T), codon
c) nucleus, double-helix
d) uracil (U), thymine (T)
When the ______ and ______ match up, the amino acid is released to form a polypeptide chain
a) translation, a mutation
b) codon, an anticodon
c) RNA, DNA
d) pyramidines, purines
Translation takes place in the:
a) codon.
b) cytoplasm.
c) nucleus.
d) mitochondria.
One of translation's goal is to make a(n):
a) Codon.
b) Purine.
c) mRNA
d) Protein
These are the building blocks of protein.
a) Translations
b) Sugars
c) Amino Acids
d) Nucleotides
Three-base sequence in a tRNA molecule base that pairs with a complementary codon in mRNA is a(n)
a) initiation
b) start codon
c) codon
d) anticodon
How many nucleotides make up a codon?
a) 1
b) 2
c) 3
d) 4
What are the basic pairing rules for DNA?
a) A-G, T-C
b) A-C, T-G
c) A-U, C-G
d) A-T, G-C
DNA molecule is made up of how many strands?
a) 1
b) 2
c) 3
d) 0
DNA is duplicated:
a) from 5’ to 3’.from 3’ to 5’.
b) from 5’ to 3’.
c) in any direction.
d) from translation to transcription.
Each duplicated DNA molecule consists of one old strand and one new strand.
a) True
b) False
c)
d)
This enzyme unwinds the DNA.
a) Helicase
b) Promoter
c) DNA polymerase
d) Intron
If the sequence of bases in the coding strand of a DNA is TAGC, then the sequence of bases in the mRNA will be:
a) ATCG
b) TAGC
c) AUCG
d) UAGC
In the use of a Punnett square for genetic results of crossing individuals,
a) all different kinds of sperm are lined up either horizontally or vertically.
b) all different kinds of eggs are lined up either horizontally or vertically
c) the results show the offspring's expected genotypes.
d) All of the choices are correct.
Gene with alternate forms is:
a) an allele.
b) a locus.
c) a Punnett’s square.
d) always dominant.
Our physical trait:
a) is the locus.
b) is the genotype.
c) is the phenotype.
d) is homozygous.
Which of the following crosses would always result in offspring that only display the dominant phenotype?
a) TT x tt
b) TT x TT
c) Tt x Tt
d) both TT x tt and TT x TT
A classic example of codominance is:
a) colorblindness.
b) height in garden peas.
c) ABO blood groups in humans.
d) pink flowers in heterozygous flowers.
This enzyme joins Okazaki fragments to form a continuous strand
a) DNA ligase
b) DNA polymerase
c) RNA primase
d) DNA helicase
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