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Midterm Questions 3
Test Description: Multiple Choice
Instructions: Answer all questions to get your test result.
1) Homeostasis means
A
a change over long periods of time
B
maintaining a stable internal environment
C
rapid change
D
the same thing as evolution
2) The electrons of an atom
A
are attached to the positive charge of neutrons
B
occupy the space surrounding the nucleus
C
have a positive charge
D
are found in the nucleus along with the protons.
3) All matter is composed of
A
molecules
B
cells
C
atoms
D
carbon
4) The father of genetics was
A
Gregor Mendel
B
A. Knight
C
None of the above
D
Hans Krebs
5) The scientific study of heredity is called
A
genetics
B
cross-over
C
pollination
D
meiosis
6) If a characteristic is sex-linked, it
A
occurs most commonly in males
B
occurs only in females
C
can never occur in females
D
is always fatal
7) a molecule that has a partial positive charge on one side and a partial negative charge on the other side is called
A
polar molecule
B
non polar molecule
C
charged molecule
D
bipolar molecule
8) The bond formed when two atoms share a pair of electrons is called a
A
hydrogen bond
B
covalent bond
C
ionic bond
D
water bond
9) Acidic solutions have a pH that is
A
less than 7
B
between 7 and 14
C
a negative number
D
more than 7
10) Which of the following is not an organic macromolecule?
A
carbohydrate
B
ice
C
lipid
D
nucleic acid
11) The passing of traits from parents to offspring is called
A
maturation
B
heredity
C
genetics
D
development
12) A change in a gene due to damage of being copied incorrectly is called
A
meiosis
B
segregation
C
evolution
D
a mutation
13) All organic compounds contain the element
A
nitrogen
B
sodium
C
carbon
D
calcium
14) Which of the following organic molecules are classified as carbohydrates
A
sugars
B
amino acids
C
fatty acids
D
nucleotides
15) Polysaccharides are
A
unsaturated fats
B
lipids
C
proteins
D
carbohydrates
16) Long chains of amino acids are found
A
carbohydrates
B
lipids
C
sugars
D
proteins
17) Which of the following are carbohydrates?
A
wax
B
DNA
C
sucrose
D
insulin
18) The two types of nucleic acids are
A
chlorophyll and retinal
B
lipids and sugars
C
glucose and glycogen
D
RNA and DNA
19) A diagram in which several generations of a family and the occurrence of certain genetic characteristics are shown is called a
A
family karyotype
B
monohybrid cross
C
pedigree
D
Pungent square
20) Since the allele for colorblindness is located on the X chromosome, colorblindness
A
non of the above
B
is sex linked
C
cannot be inherited
D
occurs only in adults
*select an answer for all questions
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