3rd Nine Weeks Review-2020 7th Grade Question Preview (ID: 50024)
Plant Systems, Genetics.
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What two things go INTO the plant (reactants) for photosynthesis
a) oxygen and glucose
b) carbon dioxide and water
c) water and oxygen
d) carbon dioxide and glucose
What is the main goal of photosynthesis?
a) to make oxygen
b) to take in carbon dioxide
c) to release water
d) to make glucose as food for the plant
What part of the cell is where photosynthesis occurs?
a) chloroplasts
b) nucleus
c) cytoplasm
d) vacuole
Phototropism is a plant's response to-
a) gravity
b) touch
c) light
d) water
Which is the term for a plant's response to gravity?
a) geotropism
b) phototropism
c) hydrotropism
d) thigmotropism
Thigmotropism is a plant's response to-
a) light
b) touch
c) water
d) gravity
Which is a heterozygous genotype?
a) SS
b) RR
c) TT
d) Tt
Which term means having the same genes for a particular trait?
a) Homozygous
b) Heterozygous
c) Autotroph
d) Heterotroph
The sprouting of a seed to form a new plant
a) Geotropism
b) Phototropism
c) Germination
d) Gestation
Which of the following is a genotype?
a) Aa
b) tall
c) short
d) homozygous
Which is a phenotype?
a) Bb
b) CC
c) genotype
d) Black fur
If black fur (B) is dominant to white fur (b) which of the following genotypes will belong to a white furred rabbit?
a) bb
b) Bb
c) BB
d) there is no way to tell
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
What is the name of the pigment that absorbs radiant energy?
a) chlorplasts
b) glucose
c) thigmotroph
d) chlorophyll
Which is the weaker gene, that only shows up if there are two of the genes present?
a) dominant
b) recessive
c) heterozygous
d) genotype
What gene is the stronger gene that will always show up if it is present?
a) recessive
b) homozygous
c) dominant
d) phenotype
Where do you find genes?
a) on DNA, inside chromosomes, inside the nucleus of cells
b) Inside the vacuole of plant cells
c) on DNA, inside chromosomes, inside the mitochondria of cells
d) In the cell membrane
Which is most true regarding offspring of asexual reproduction?
a) the offspring came from two parents and each is identical to the other
b) the offspring came from one parent and has two copies of the parents DNA
c) the offspring came from one parent and are identical to the parent
d) the offspring came from two parents and are genetically diverse
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) sexual reproduction involves two parents and the offspring have a combination of DNA from each parent
c) asexual reproduction involves one parent and the offspring is dramatically different from the parent
d) asexual reproduction invovles two parents and the offspring are genetically identical to one of the parents
What part of the plant is responsible for turgor pressure?
a) nucleus
b) vacuole
c) cytoplasm
d) chloroplasts
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