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3rd Nine Weeks Review-2020 7th Grade
Test Description: Plant Systems, Genetics
Instructions: Answer all questions to get your test result.
1) Which of the following statements about reproduction is true?
A
sexual reproduction involves one parent and the offspring has their DNA in a different order
B
asexual reproduction involves one parent and the offspring is dramatically different from the parent
C
asexual reproduction invovles two parents and the offspring are genetically identical to one of the parents
D
sexual reproduction involves two parents and the offspring have a combination of DNA from each parent
2) Which is most true regarding offspring of asexual reproduction?
A
the offspring came from one parent and has two copies of the parents DNA
B
the offspring came from two parents and each is identical to the other
C
the offspring came from two parents and are genetically diverse
D
the offspring came from one parent and are identical to the parent
3) Where do you find genes?
A
on DNA, inside chromosomes, inside the mitochondria of cells
B
In the cell membrane
C
on DNA, inside chromosomes, inside the nucleus of cells
D
Inside the vacuole of plant cells
4) What gene is the stronger gene that will always show up if it is present?
A
recessive
B
homozygous
C
dominant
D
phenotype
5) Which is the weaker gene, that only shows up if there are two of the genes present?
A
heterozygous
B
recessive
C
dominant
D
genotype
6) Which of the following is a genotype?
A
Aa
B
homozygous
C
tall
D
short
7) Which is a phenotype?
A
Bb
B
Black fur
C
CC
D
genotype
8) If black fur (B) is dominant to white fur (b) which of the following genotypes will belong to a white furred rabbit?
A
there is no way to tell
B
Bb
C
bb
D
BB
9) If tall (T) is dominant to short (t) which of the genotypes belong to a tall plant?
A
Only Tt
B
Only tt
C
Both TT and Tt could be tall
D
Only TT
10) Which is a heterozygous genotype?
A
TT
B
Tt
C
SS
D
RR
11) Which term means having the same genes for a particular trait?
A
Homozygous
B
Autotroph
C
Heterozygous
D
Heterotroph
12) The sprouting of a seed to form a new plant
A
Germination
B
Geotropism
C
Gestation
D
Phototropism
13) Phototropism is a plant's response to-
A
water
B
touch
C
gravity
D
light
14) Which is the term for a plant's response to gravity?
A
thigmotropism
B
geotropism
C
hydrotropism
D
phototropism
15) Thigmotropism is a plant's response to-
A
touch
B
water
C
gravity
D
light
16) What is the name of the pigment that absorbs radiant energy?
A
chlorplasts
B
chlorophyll
C
glucose
D
thigmotroph
17) What part of the cell is where photosynthesis occurs?
A
vacuole
B
nucleus
C
cytoplasm
D
chloroplasts
18) What is the main goal of photosynthesis?
A
to release water
B
to make oxygen
C
to make glucose as food for the plant
D
to take in carbon dioxide
19) What two things go INTO the plant (reactants) for photosynthesis
A
carbon dioxide and glucose
B
water and oxygen
C
oxygen and glucose
D
carbon dioxide and water
20) What part of the plant is responsible for turgor pressure?
A
chloroplasts
B
nucleus
C
cytoplasm
D
vacuole
*select an answer for all questions
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