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Mechanisms Of Genetics
Test Description: Review
Instructions: Answer all questions to get your test result.
1) Identify the molecule which contains the instructions used to create an organism’s enzymes and proteins.
A
hemoglobin
B
glucose
C
deoxyribonucleic acid
D
nicotinamide adenine dinucleotide
2) Which of the following correctly shows a complementary base pair of nitrogenous bases in a DNA molecule?
A
guanine- cytosine
B
guanine- thymine
C
adenine- guanine
D
cytosine- adenine
3) DNA is a polymer which is made up of subunits called nucleotides. Which of these is not a DNA nucleotide component?
A
phosphate group
B
ribose sugar
C
nitrogenous base
D
deoxyribose sugar
4) Which of the following correctly lists the four possible nitrogenous bases in DNA?
A
adenine, guanine, cytosine, uracil
B
glutamine, proline, tyrosine, phenylalanine
C
adenine, guanine, cytosine, thymine
D
leucine, proline, tyrosine, phenylalanine
5) Which statement best describes what takes place during translation?
A
A copy of chromosomal DNA is created.
B
Instructions from DNA in the nucleus are brought to the cytoplasm.
C
An RNA copy of a DNA strand is made.
D
Information in mRNA is converted into a sequence of amino acids in a protein.
6) In order for DNA instructions to move from the nucleus to the ribosomes in the cytoplasm of a cell, an RNA copy of a DNA strand must be made. This process, which takes place in the cell nucleus, is called-
A
DNA replication
B
mutation
C
transcription
D
translation
7) Which technique is used to make DNA fingerprints?
A
cloning
B
gel electrophoresis
C
gene splicing
D
genetic engineering
8) A scientist treats a cell with a chemical that destroys the ribosomes. As a result, which cell process will be stopped?
A
osmosis
B
protein synthesis
C
respiration
D
photosynthesis
9) A sugar, a phosphate group, and a nitrogen base form the building blocks of which organic compound?
A
carbohydrates
B
proteins
C
nucleic acids
D
lipids
10) A genetic counselor is examining a karyotype from a patient when an extra copy of chromosome 13 is noticed. This condition is referred to as
A
monosomy
B
trisomy
C
diploidy
D
triploidy
*select an answer for all questions
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