Unit 4 Genetics Question Preview (ID: 40418)
Genetic.
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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
What would be a possible disadvantage of asexual reproduction?
a) Results in low genetic variation of the species.
b) Ability to reproduce in the absence of a mate.
c) Allows for more genetic variation in the offspring.
d) Takes less time to produce offspring
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) sexual.
c) sporulation.
d) binary fission.
Where is the genetic material located inside of a eukaryotic cell?
a) nucleus
b) mitochondria
c) vacuole
d) ribosome
The most appropriate tool for analyzing the organization of genetic material inside of a eukaryotic cell is a -
a) model.
b) microscope.
c) petri dish.
d) microscope slide.
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) spoken language
b) height
c) skin color
d) dimples
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 dominance.
b) the law of genotypes.
c) the law of separation.
d) the law of sorting.
Which combination represents sexual reproduction?
a) Egg and sperm combining; flowers
b) Egg and sperm combining; ameoba splitting
c) Ameoba splitting
d) Flowers; egg and sperm combining; hydra
In sexual reproduction, how may genes does an offspring receive for each trait?
a) 2
b) 1
c) 3
d) 4
Sexual reproduction-
a) results in genetic variation in the offspring.
b) produces offspring that are identical to the parent.
c) decreases the chances of survival of the species.
d) results in genetic material being donated to offspring by only one parent.
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 exhibit the dominant trait with the recessive trait being masked.
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 combine the recessive allele with the dominant allele and exhibit an entirely new trait.
Which organelle of a cell houses the chromosomes?
a) Nucleus
b) Mitochondria
c) Vacuole
d) Ribosomes
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 dominant 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 submissive trait.
What is a major cause of variation within a species?
a) Sexual reproduction
b) Asexual reproduction
c) Extinction
d) Photosynthesis
Which of the following traits is most influenced by the environment?
a) Body weight
b) Eye color
c) Blood type
d) Color blindness
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.
When a spider plant produces a new plantlet what type of reproduction is used?
a) asexual
b) regeneration
c) sexual
d) sporulation
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