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DNA, Genetics And Evolution (7)
Test Description: DNA, Genetics and Evolution -Middle School - Life Science
Instructions: Answer all questions to get your test result.
1) In order to continue life, DNA must
A
breed
B
mate
C
reproduce
D
replicate
2) Different versions or forms of the same genes are called -
A
alleles
B
nitrogen bases
C
chromosomes
D
sex cells
3) A change or mistake in the DNA can cause-
A
meiosis
B
a mutation
C
blending
D
incomplete dominance
4) If all of the offspring have the genotype, Bb in a Punnett Square, what are the genotypes of the parents?
A
Bb and bb
B
BB and BB
C
BB and bb
D
bb and bb
5) Which of the following statements is true?
A
Human body cells have 46 chromosomes.
B
Chromosomes absorb sunlight and help plants go through photosynthesis.
C
Dogs and humans have the same number of chromosomes.
D
Men usually have more chromosomes than women.
6) Chromosomes are composed of coiled together-
A
phosphate
B
nitrogen
C
chromatin
D
cytoplasm
7) If a red snapdragon flower crosses with a white snapdragon flower, the offspring will be pink. What does this represent?
A
Purebred dominance
B
One gene influencing many traits
C
A recessive trait
D
Incomplete dominance
8) The physical appearance of an organism.
A
genotype
B
allele pattern
C
double helix shape
D
phenotype
9) Where is the genetic material of a eukaryotic cell located?
A
In the nucleus
B
In the cell wall
C
In the ribosomes
D
Outside the nuclear membrane
10) If widow's peak (W) is dominant over straight hairline (w), what is the genotype of an individual that is a purebred for widow's peak?
A
WW
B
ww
C
Ww
D
Wx
*select an answer for all questions
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