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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
Yellow flowers if both recessive alleles are present
B
no flowers
C
pink flowers if it does not have a dominant gene for yellow flowers
D
pink flowers if it has a dominant gene for yellow flowers
2) Tetrads are
A
genes
B
chromosomes
C
alleles
D
traits
3) In metaphase chromosomes
A
move to the ends
B
multiply
C
line up in the center
D
dissolve
4) The stage where two cells start to form
A
anaphase
B
teleophase
C
metaphase
D
prophase
5) In this phase the chromosomes are not really visable
A
prophase
B
anaphase
C
telophase
D
interphase
6) The physical representation of a trait
A
genotype
B
dominant
C
phenotype
D
recessive
7) The chance that human offspring would be male?
A
50
B
75
C
100
D
25
8) The process of making changes in the DNA code of living organisms
A
genetic engineering
B
inbreeding
C
nondisjunction
9) Colorblindness is more common in males than females because
A
it is located on Y chromosome and is dominant
B
it is located on X chromosome and is dominant
C
it is located on X chromosome and is recessive
D
it is located on Y 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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