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Genetics
Test Description: Std 4.5-4.9 SC
Instructions: Answer all questions to get your test result.
1) If plant has a recessive allele for pink flowers it will produce
A
pink flowers if it has a dominant gene for yellow flowers
B
pink flowers if it does not have a dominant gene for yellow flowers
C
no flowers
D
Yellow flowers if both recessive alleles are present
2) Tetrads are
A
genes
B
traits
C
chromosomes
D
alleles
3) In metaphase chromosomes
A
line up in the center
B
multiply
C
move to the ends
D
dissolve
4) The stage where two cells start to form
A
anaphase
B
metaphase
C
prophase
D
teleophase
5) In this phase the chromosomes are not really visable
A
anaphase
B
interphase
C
prophase
D
telophase
6) The physical representation of a trait
A
recessive
B
dominant
C
genotype
D
phenotype
7) The chance that human offspring would be male?
A
25
B
75
C
50
D
100
8) The process of making changes in the DNA code of living organisms
A
nondisjunction
B
inbreeding
C
genetic engineering
9) Colorblindness is more common in males than females because
A
it is located on X chromosome and is dominant
B
it is located on Y chromosome and is recessive
C
it is located on Y chromosome and is dominant
D
it is located on X chromosome and is recessive
10) What is advantage of transgenic wheat?
A
all of the above
B
increasing food supply
C
plants resistant to drought
D
plants resistant to bugs
*select an answer for all questions
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