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Unit 4 Genetics
Test Description: Genetic
Instructions: Answer all questions to get your test result.
1) While standing in line a student notices a variety of heights among her classmates. From her observations, what could be a logical inference for the variations in height?
A
The height of the students is inherited from their parents.
B
The tall students are taking growth steroids.
C
The short students are not eating the proper foods.
D
The height of the students cannot be determined from the observations.
2) What is a major cause of variation within a species?
A
Photosynthesis
B
Sexual reproduction
C
Extinction
D
Asexual reproduction
3) Which of the following traits is most influenced by the environment?
A
Body weight
B
Color blindness
C
Blood type
D
Eye color
4) Which organelle of a cell houses the chromosomes?
A
Ribosomes
B
Vacuole
C
Nucleus
D
Mitochondria
5) The ability to roll your tongue is an inherited trait. There are more people who can roll their tongues than people who can't roll their tongues. Which of the following could be a correct assumption to explain this?
A
The ability to tongue roll is a submissive trait.
B
The ability to tongue roll is a rare trait.
C
The ability to tongue roll is a recessive trait.
D
The ability to tongue roll is a dominant trait.
6) An offspring inherited a dominant allele from one parent and a recessive allele from the other parent for the same trait. Which of the following is a possible explanation for what will be exhibited by the offspring for that trait?
A
The offspring will combine the recessive allele with the dominant allele and exhibit an entirely new trait.
B
The offspring will not exhibit that trait because the dominant and recessive traits he received will each mask the other.
C
The offspring will exhibit the recessive trait with the dominant trait being masked.
D
The offspring will exhibit the dominant trait with the recessive trait being masked.
7) Sexual reproduction-
A
results in genetic material being donated to offspring by only one parent.
B
decreases the chances of survival of the species.
C
results in genetic variation in the offspring.
D
produces offspring that are identical to the parent.
8) In sexual reproduction, how may genes does an offspring receive for each trait?
A
3
B
1
C
2
D
4
9) Which combination represents sexual reproduction?
A
Egg and sperm combining; ameoba splitting
B
Egg and sperm combining; flowers
C
Ameoba splitting
D
Flowers; egg and sperm combining; hydra
10) The work of Gregor Mendel was based on his discovery that heredity information for two different forms of a trait can coexist in one individual. He recognized that one form of the trait masks the expression of the other. This is known as-
A
the law of genotypes.
B
the law of dominance.
C
the law of separation.
D
the law of sorting.
11) Heredity is defined as the passage of genetic instructions from one generation to the next. Which of the following is NOT an example of these genetic instructions in humans?
A
dimples
B
skin color
C
spoken language
D
height
12) The most appropriate tool for analyzing the organization of genetic material inside of a eukaryotic cell is a -
A
microscope.
B
microscope slide.
C
model.
D
petri dish.
13) Where is the genetic material located inside of a eukaryotic cell?
A
nucleus
B
ribosome
C
vacuole
D
mitochondria
14) Hydra reproduce by a process known as budding. This process is the formation of a new individual that is a clone of the parent. This type of reproduction is-
A
asexual.
B
binary fission.
C
sporulation.
D
sexual.
15) What would be a possible disadvantage of asexual reproduction?
A
Ability to reproduce in the absence of a mate.
B
Results in low genetic variation of the species.
C
Allows for more genetic variation in the offspring.
D
Takes less time to produce offspring
16) A male with blue eyes produces offspring with a female with brown eyes. Brown eyes are dominant. Which of the following represents possible genotypes for eye color?
A
Father: bb, Mother: bb
B
Father: BB, Mother: Bb
C
Father: bb, Mother: Bb
D
Father: Bb, Mother: BB
17) When a spider plant produces a new plantlet what type of reproduction is used?
A
regeneration
B
sporulation
C
sexual
D
asexual
*select an answer for all questions
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