EOC Review 1 Question Preview (ID: 14480)


EOC Review Pt 1. TEACHERS: click here for quick copy question ID numbers.

The process by which some plant species survive and others do not in a changing environment is best described by...
a) natural selection
b) law of segregation
c) biological magnification
d) alternation of generations

What is the role of hydrogen bonds in the structure of DNA?
a) to connect the base pairs
b) to code for proteins
c) to synthesize proteins
d) to separate the strands

Which process allows for an organism to increase the number of body cells during development?
a) budding
b) conjugation
c) meiosis
d) mitosis

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

What is the result of the fertilization of an egg?
a) It restores the diploid number of chromosomes.
b) It deletes polypeptide chains in the chromosomes.
c) It gives offspring more chromosomes than the parents.
d) It gives offspring fewer chromosomes than the parents.

Which of these best describes the initial change caused by a DNA mutation?
a) a change in the sequence of base pairs
b) a change in the production of enzymes
c) a change in the number of nucleosomes within a cell
d) a change in the number of hydrogen bonds between the bases

Which statement best describes an advantage of asexual reproduction for a population of organisms?
a) The population can increase in number more rapidly.
b) The population can develop greater genetic diversity.
c) The population can maintain the same number of organisms.
d) The population can adapt more quickly to a changing environment.

Which of these would be least likely to diffuse across the phospholipid
a) water
b) oxygen
c) sodium ions
d) carbon dioxide

How many daughter cells are formed in meiosis?
a) 0
b) 1
c) 2
d) 4

Which of these shows the steps by which proteins are coded and synthesized?
a) RNA --> DNA --> protein
b) DNA --> RNA--> Protein
c) protein --> RNA --> DNA
d) protein --> DNA --> RNA

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