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EOC Review 1
Test Description: EOC review pt 1
Instructions: Answer all questions to get your test result.
1) The process by which some plant species survive and others do not in a changing environment is best described by...
A
law of segregation
B
biological magnification
C
alternation of generations
D
natural selection
2) What is the role of hydrogen bonds in the structure of DNA?
A
to synthesize proteins
B
to code for proteins
C
to connect the base pairs
D
to separate the strands
3) Which process allows for an organism to increase the number of body cells during development?
A
meiosis
B
mitosis
C
budding
D
conjugation
4) Which of these would lead to a lower rate of photosynthesis in a plant?
A
an increase in the amount of oxygen in the air
B
a decrease in the amount of oxygen in the air
C
an increase in the amount of carbon dioxide in the air
D
a decrease in the amount of carbon dioxide in the air
5) What is the result of the fertilization of an egg?
A
It gives offspring fewer chromosomes than the parents.
B
It deletes polypeptide chains in the chromosomes.
C
It restores the diploid number of chromosomes.
D
It gives offspring more chromosomes than the parents.
6) Which of these best describes the initial change caused by a DNA mutation?
A
a change in the number of nucleosomes within a cell
B
a change in the number of hydrogen bonds between the bases
C
a change in the sequence of base pairs
D
a change in the production of enzymes
7) Which statement best describes an advantage of asexual reproduction for a population of organisms?
A
The population can adapt more quickly to a changing environment.
B
The population can develop greater genetic diversity.
C
The population can maintain the same number of organisms.
D
The population can increase in number more rapidly.
8) Which of these would be least likely to diffuse across the phospholipid
A
sodium ions
B
carbon dioxide
C
oxygen
D
water
9) How many daughter cells are formed in meiosis?
A
0
B
1
C
4
D
2
10) Which of these shows the steps by which proteins are coded and synthesized?
A
DNA --> RNA--> Protein
B
protein --> DNA --> RNA
C
protein --> RNA --> DNA
D
RNA --> DNA --> protein
*select an answer for all questions
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