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Genetics Practice 1
Test Description: Review for our genetics test!
Instructions: Answer all questions to get your test result.
1) TT is.....
A
Homozygous recessive
B
Heterozygous
C
Homozygous dominant
2) Tt is....
A
Homozygous recessive
B
Heterozygous
C
Homozygous dominant
3) tt
A
Homozygous dominant
B
Heterozygous
C
Homozygous recessive
4) How are sex cells different from all of the other cells in the body?
A
Sex cells have no chromosomes.
B
Sex cells have more chromosomes.
C
Sex cells are larger.
D
Sex cells have half as many chromosomes.
5) The sex chromosome pair in a human female is represented by which two letters?
A
XX
B
XY
6) B = blue and b = purple The offspring genotpes are (BB), (Bb) and (bb). What is the genotype for blue flowers?
A
Only bb
B
Both BB and Bb
C
Only BB
D
Neither BB nor Bb
7) A grey flower is crossed with a white flower. A heterozygous grey offspring is produced. The offspring is grey because...
A
Grey is the recessive color.
B
Grey is the darker color.
C
Grey is the dominant color.
D
Grey is the mixture between black and white.
8) Which is an example of a heterozygous genotype?
A
hh
B
HH
C
Hh
9) Through what process does a cell reproduce two daughter cells that are exact copies of the original cell?
A
Recessive supplication
B
Dominant replication
C
Asexual reproduction
D
Sexual reproduction
10) What is the complimentary/matching strand to the following DNA sequence: TAGTC
A
ATGAG
B
ATCAG
C
GACAG
D
GTAGA
11) How many daughter cells and chromosomes are produced through meiosis?
A
4 daughter cells, twice the number of chromosomes
B
2 daughter cells, same number of chromosomes
C
2 daughter cells, twice the number of chromosomes
D
4 daughter cells, half the number of chromosomes
12) A plant with round seeds is crossed with another plant with round seeds. If round seeds are dominant, how can an offspring have wrinkled seeds?
A
Both parents are homozygous wrinkled (rr) and (rr)
B
Both parents are homozygous round (RR) and (RR)
C
One parent is homozygous round (RR) and heterozygous (Rr)
D
Both parents are heterozygous (Rr) and (Rr)
13) The passing of material from parents to offspring is called....
A
heredity
B
zoology
C
psychology
D
ecology
14) Who is considered the Father of Modern Genetics?
A
James WAtson
B
Francis Crick
C
Gregor Mendel
D
George Beadle
15) A feature that has different forms in a population, example eye color
A
trait
B
characteristic
*select an answer for all questions
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