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Heredity/complete Dominance 8 And 9
Test Description: This game aims to review different important definitions used in the heedity course for Grade 9 students.
Instructions: Answer all questions to get your test result.
1) The phenotype is
A
All the visible characteristics
B
All recessive genes
C
All the genes
D
All dominant genes
2) The genotype is:
A
All the dominant alleles
B
All the visible characteristics
C
All the genes
D
An allele
3) Hybrid ( means /examples) :
A
Ao
B
All choices are correct
C
Heterozygous
D
Different alleles of the same gene
4) Anas is a boy of blood group A, his possible genotype(s) is (are):
A
Ao only
B
AA only
C
AA or Ab
D
Ao only
5) In the case of complete dominancy:
A
There is a dominant trait and a recessive trait
B
All choices are correct
C
The dominant trait may expressed as pure or hybrid
D
The dominant trait mask the recessive one
6) The recessive trait maybe expressed as:
A
Hybrid only
B
Pure or hybrid
C
None of the choices
D
Pure only
7) Pure genotype (meaning/examples):
A
AA
B
All choices are correct
C
BB
D
Homozygous
8) A cross between pure red flower (dominant) and white (recessive) gives:
A
Non of the choices is correct
B
100% hybrid red
C
50% red and 50% white
D
100% pure red
9) The genes :
A
May carry identical genetic information
B
All choices are correct
C
Are arranged in a linear manner on chromosomes
D
May carry different genetic information
10) A man and his wife of blood group (o) may give a child having
A
Blood group B
B
Blood group (o) only
C
Blood group A
D
Non of the choices is correct
*select an answer for all questions
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