What was the conclusion of the Avery, MacLeod, and McCarty experiment?

DNA is responsible for transforming nonvirulent > virulent bacteria

What occurs in Prometaphase?

Microtubules of the mitotic spindle attach to the centromeres

Which of the following about slow-twitch fibers is INCORRECT?

Contain lower amounts of mitochondria and myoglobin

What discredited Darwin's model of blending inheritance?

Pea Plant Experiments by Gregor Mendel

What is a frameshift mutation?

A mutation that shifts the 3 amino acid long reading frame

What is the role of mRNA?

Carrying the genetic information from the DNA to the ribosome

What are the three steps of PCR?

Denaturation, annealing, and extension

What is NOT an example of antagonist muscle movement?

Three heads of the triceps lowering the arm away from the shoulder

Which of the following steps does NOT lead to oxidative phosphorylation?

Fermentation forming lactic acid

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BIOL 1030H Quiz 1

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Answers

1
What was the conclusion of the Avery, MacLeod, and McCarty experiment?
Ribose is the sugar molecule used in RNA
The discovery of the structure of DNA
DNA is responsible for transforming nonvirulent > virulent bacteria
A's are paired with T's and C's are paired with G's
2
What occurs in Prometaphase?
Sister chromatids are pulled to opposite poles of the cell
Chromosomes are lined up along the center plane of the cell
Microtubules of the mitotic spindle attach to the centromeres
Chromosomes condense and the mitotic spindle begins to form
3
What is the central dogma of molecular biology?
DNA> RNA> Protein
Protein> RNA> DNA
DNA> RNA> DNA
DNA> RNA
4
Which of the following about slow-twitch fibers is INCORRECT?
Gain ATP through oxidative phosphorylation
Found in muscles that contract and consume ATP slowly
Contain lower amounts of mitochondria and myoglobin
Have greater resistance to fatigue in response to repetitive stimulation
5
What is the order of site progression in the large ribosomal subunit?
A P E
E P A
P E A
E A P
6
What discredited Darwin's model of blending inheritance?
Live Sponge Experiments by H. V. Wilson
Pea Plant Experiments by Gregor Mendel
Crystallography Experiments by Gregor Mendel
Pea Plant Experiments by Nelson Mandela
7
The number of genes present in the genome is a good predictor of genome complexity
True
False
8
What are jumping genes?
Transposable elements
Skeletal muscle stem cells
Genes associated with body planning
Chloroplast genes found only in corn
9
What is a frameshift mutation?
A mutation that shifts the 3 amino acid long reading frame
A substitution of an amino acid, resulting in a premature stop codon
A mutation that shifts the 4 amino acid long reading frame
A synonymous mutation in the third codon location
10
If you crossed a AA plant with an Aa plant, what resulting genotypes would you get?
4 AA
2 AA and 2 Aa
2 AA, 1 Aa, and 1 aa
3 AA and 1 aa
11
The sugar used in DNA is deoxyribose
True
False
12
Many bones in the body (vertebrae, pelvis, and limb bones) first exist as a cartilage precursor.
True
False
13
In X-linked RECESSIVE mutations, the sister of an affected male can have affected sons.
False
True
14
What is the role of mRNA?
Splicing introns from the primary transcript, forming lariats
Carry individual amino acids to to the ribosome
Used in adaptive immune response
Carrying the genetic information from the DNA to the ribosome
15
What are the three steps of PCR?
Initiation, elongation, and termination
Denaturation, replication, and termination
Denaturation, annealing, and extension
Denaturation, elgonation, and termination
16
Nondisjunctions in meiosis result in extra or missing chromosomes
False
True
17
The sarcoplasmic reticulum contains a large internal concentration of sodium while at rest, transported via sodium pumps
False
True
18
What is NOT an example of antagonist muscle movement?
Flexion and extension of leg joints in grasshoppers
Elevation and depression of wings on flying insects
Three heads of the triceps lowering the arm away from the shoulder
Flexing the arm towards and lowering the arm away from the shoulder
19
Which of the following steps does NOT lead to oxidative phosphorylation?
Pyruvate oxidation
Fermentation forming lactic acid
Citric acid cycle
Electron transport chain
20
Organisms that lack nuclei are:
Eukaryotes
Archaea and Bacteria
Bacteria
Archaea

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