Genetics Chapter 5 Question Preview (ID: 37847)
7th Grade.
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In a human body cell there are 46 chromosomes. How many chromosomes are in a sperm??
a) 23
b) 46
c) 92
d) random number
If the genotype is Bb and B= brown eyes and b= blue eyes, what is the phenotype?
a) brown eyes
b) blue eyes
c) homozygous
d) green eyes
Which is an example of a homozygous recessive genotype?
a) rr
b) RR
c) Rr
d) RrRr
Which sex chromosomes do male have?
a) XY
b) XX
c) dominate
d) recessive
Which of the following is the smallest pieces that makes up the other terms?
a) genes
b) chromosomes
c) nucleus
d) cells
If you cross two rabbits that have the genotype Bb, how many possible genotypes are there?
a) 3
b) 1
c) 2
d) 4
If you cross two rabbits with the genotype Bb, What is the percent chance that they will we homozygous recessive?
a) 25%
b) 75%
c) 100%
d) 50%
What is the study of inheritance?
a) genetics
b) cytology
c) ecology
d) dominance
Who is considered the father of genetics and studied pea plant charateristics?
a) Gregor Mendel
b) Charles Darwin
c) Robert Hooke
d) Mr. Meyer
Which is an example of a heterozyous genotype?
a) Hh
b) HH
c) hh
d) brown hair
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