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Genetics
Test Description: 7th grade genetics/heredity review
Instructions: Answer all questions to get your test result.
1) Which of the following would be homozygous?
A
neither
B
BB
C
both
D
bb
2) Which of the following would be heterozygous?
A
None of the above
B
Bb
C
BB
D
bb
3) What is the physical appearance for a trait?
A
none of the above
B
phenotype
C
genotype
D
Allelle
4) What kpercent of alleles does each parent contribute to their offspring?
A
25%
B
0%
C
50%
D
75%
5) Who is the father of genetics?
A
Newton
B
Einstein
C
Mendel
D
None of the above
6) The scientific study of heredity is called...
A
crossing-over
B
genetics
C
pollination
D
meiosis
7) What can be used to determine the gentic possibilities for different combinations of alleles?
A
pedigree chart
B
probability
C
punnett square
D
genetics
8) Which of the following is not an inherited trait?
A
broken leg
B
attached earlobe
C
blood type
D
hair color
9) Which disease causes red blood cells to have an unusual shape?
A
the flu
B
parkinson's disease
C
sickle cell disease
D
Huntingstons disease
10) What do the letters Tt mean to a geneticist?
A
two dominant alleles
B
heterogenous alleles
C
trait
D
homozygous alleles
*select an answer for all questions
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