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MOCT 5
Test Description: MOCT REVIEW
Instructions: Answer all questions to get your test result.
1) Organisms that have two identical allele for a particular trait are said to be
A
heterozygous.
B
dominant.
C
hybrid.
D
homozygous.
2) In humans, a male has
A
two X chromosomes.
B
one X chromosome and one Y chromosome.
C
one X chromosomes only.
D
two Y chromosomes.
3) Genes contain instructions for assembling
A
proteins.
B
purines
C
nucleosomes.
D
pyrimidines.
4) What results from the removal of a phosphate group from ATP?
A
the creation of energy.
B
the production of mehanical energy.
C
the release of energy.
D
the absorption of energy by chlorophyll.
5) The offspring of the cross-fertilization of pea plants with purple flowers and pea plants with white flowers are called
A
recessive breeds.
B
hybrids.
C
gametes.
D
pure breeds.
6) In eukaryotes, electron transport occurs in the
A
cell membrane.
B
cytoplam
C
chloroplasts.
D
mitochondria.
7) The process of DNA fingerprinting is based on the fact that.
A
no two people, except identical twins, have exactly the same DNA.
B
most genes are dominant.
C
the most important genes are different among most people.
D
most people have DNA that contains repeats.
8) A punnett sqaure shows all of the following EXCEPT
A
the actual results of a genetic cross.
B
the alleles in the gametes of each parent;
C
the genotypes of the offspring.
D
all possible results of a genetic cross.
9) During photosynthesis light energy is converted to the energy in chemical bonds. What also happens according to the predictins of the second law of thermodynamics?
A
chemical energy is converted to light energy.
B
matter is lost in the process
C
heat is released in the process
D
the light and chemical energy are equal
10) How many codons are needed to specify three amino acids?
A
3
B
9
C
6
D
12
*select an answer for all questions
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