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DNA, Genetics And Evolution (6)
Test Description: DNA, Genetics and Evolution -Middle School - Life Science
Instructions: Answer all questions to get your test result.
1) Modern genetic engineering began in 1973 when Herbert Boyer and Stanley Cohen used enzymes to cut a bacteria plasmid and inserted another-
A
strand of RNA in the gap
B
strand of DNA in the gap
C
pair of chromosomes into the gap
D
single gene into the gap
2) Which of the following is NOT an inherited trait?
A
reading ability
B
eye color
C
hair color
D
blood type
3) Genetic engineering has helped produce many different types of vaccines. Vaccines are used to-
A
locate the first source of a particular disease
B
change the genetic make-up of a particular disease
C
enhance the movement of a particular disease
D
improve protection against a particular disease
4) What could represent the genotypes of an organism?
A
Wrinkled, gY
B
Tt, green
C
Rr, TT
D
Tall, red
5) If the genotypes of the offspring are 25% WW, 50% Ww, and 25% ww, what are the genotypes of the parents?
A
WW and WW
B
ww and ww
C
ww and Ww
D
Ww and Ww
6) In pea plants, the tall trait is dominant. If a purebred tall plant crosses with a hybrid tall plant, the offspring will be -
A
mostly short
B
all tall plants
C
50% tall, 50% short
D
75% short, 25% tall
7) In guinea pigs, brown fur (B) is dominant over white fur (b). Design a Punnett square to demonstrate the possible outcome if a purebred brown guinea pig is crossed with a purebred white guinea pig. What genotype would be possible?
A
Bb
B
BB
C
bb
D
white fur
8) The Thompson family has four daughters. What is the probability their next child will also be a girl?
A
50%
B
25%
C
100%
D
0%
9) Teresa was told by her doctor that her unborn baby has XY chromosomes. What does this information tell you?
A
The baby will be a girl.
B
The baby will be born with down syndrome.
C
The baby will be a boy.
D
The baby will look exactly like his/her father.
10) Rosalind Franklin created the above X-ray to examine the -
A
division of DNA
B
alleles of DNA
C
chromosomes of DNA
D
structure of DNA
*select an answer for all questions
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