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Transcript
TEST NAME: Genetics (MSL Review)
TEST ID: 580247
GRADE: 07
SUBJECT: Life and Physical Sciences
TEST CATEGORY: Shared Classroom Assessments
Genetics (MSL Review)
Page 1 of 9
Student: Class:
Date:
1. Which phrase does not describe asexual reproduction in organisms?
A.
requires two parents
B.
little variation in offspring
C.
only one type of cell involved
D.
duplicates its genetic material
2. A particular peach tree produces peaches that are more resistant to disease than other peaches. What
method would reproduce these EXACT peaches?
A.
use bees to pollinate the flowers
B.
reproduce by cross­pollination of different peach trees
C.
increase the diversity in the peach tree
D.
ensure that the peach tree reproduces asexually
3. Bacteria are organisms that reproduce asexually. What would the traits inherited by a newly produced
bacterium be like?
A.
different from the traits of the single parent
B.
the same traits as the single parent
C.
different from the traits of two parents
D.
similar traits as two parents
4. Which of the following is a result of the exchange of homologous chromosome parts during the process of
meiosis?
A.
random mutations
B.
decreased gamete number
C.
offspring with unique combinations of traits
D.
decreased number of alleles on each chromosome
5. Which best describes sexual reproduction in all animals?
A.
Egg and sperm join together.
B.
Pollen and seed join together.
C.
Offspring have traits of only one parent.
D.
Offspring are identical to one parent.
6. Which of these is the best example of sexual reproduction?
A.
binary fission
B.
budding
C.
fusing gametes
D.
fragmentation
Genetics (MSL Review)
Page 2 of 9
7. Which is the greatest benefit of sexual reproduction?
A.
capable of reproducing by meiosis
B.
ability to reproduce without a mate
C.
ability to produce genetically different offspring
D.
capable of producing offspring genetically identical to parent
8. In order to grow two of the exact same plants, a person would reproduce them asexually because the
A.
genetic diversity is greater.
B.
offspring would be genetically identical.
C.
recessive traits would emerge.
D.
negative traits are suppressed.
9. Which of the following describes asexual reproduction?
A.
the process of meiosis in a fruit fly
B.
fertilization of a chicken egg
C.
binary fission in an amoeba
D.
the process of embryo development in a mouse
10. What types of cells are found only in organisms that reproduce sexually?
A.
blood cells
B.
neurons
C.
skin cells
D.
gametes
11. Some organisms reproduce sexually while other organisms reproduce asexually. Which would be an
example of asexual reproduction?
A.
B.
C.
D.
Genetics (MSL Review)
Page 3 of 9
12. In animals, female traits are passed down to offspring from
A.
sperm.
B.
seeds.
C.
pollen.
D.
eggs.
13. Some fungi can reproduce either asexually or sexually, resulting in offspring with different
characteristics. Sexually produced offspring have
A.
a complex level of cell organization.
B.
a number of organelles in each cell.
C.
a lesser risk of having mutations than asexually produced offspring.
D.
a combination of genetic material from each parent cell.
14. Which statement describes a characteristic of both sexual and asexual reproduction?
A.
The processes require egg cells.
B.
New cells are produced.
C.
Two parents are required.
D.
The processes produce genetically unique offspring.
15. Why does sexual reproduction result in more genetic diversity than asexual reproduction?
A.
Traits from two parents are combined.
B.
More organisms reproduce this way.
C.
Offspring grow in different environments.
D.
Offspring come from identical parents.
16. Meiosis is a type of cell division in which germ cells divide to produce haploid cells. Where does meiosis
occur?
A.
brain cells
B.
bone cells
C.
muscle cells
D.
ovary cells
17. The gametes of human males and females have the same number of chromosomes. Which best describes
what happens to the chromosomes when typical male and female gametes combine to produce offspring?
A.
The chromosomes change shape.
B.
The number of chromosomes doubles.
C.
The chromosomes become larger in size.
D.
The number of chromosomes reduces by half.
18. Daffodils are plants that can perform both asexual and sexual reproduction. How does a daffodil population
benefit more by reproducing sexually than asexually?
A.
It can reproduce more rapidly.
B.
It can adapt faster to its environment.
C.
It can increase the diversity of inherited traits.
D.
It can eliminate unfavorable traits from the gene pool.
Genetics (MSL Review)
Page 4 of 9
19. Which process occurs during meiosis that contributes to a germ cell having unique genetic material?
A.
transcription
B.
replication
C.
crossing over
D.
spindle formation
20. Vertebrate animals produce offspring by sexual reproduction. Which is an advantage of this type of
reproduction?
A.
Time and energy is used to find a mate in the population.
B.
There is increased genetic diversity within the population.
C.
The offspring grows faster than one that is produced asexually.
D.
The offspring receives its DNA from one parent and is identical to that parent.
21. When an egg and sperm form an embryo, the offspring that is formed will have genetic traits that are
A.
inherited from only one parent.
B.
created by the environment.
C.
passed on from two parents.
D.
learned from siblings.
22. A main advantage to organisms that reproduce sexually is
A.
being able to conserve energy.
B.
having large numbers of offspring.
C.
greater genetic diversity.
D.
longer life spans.
23. A plant that has traits identical to the parent plant provides evidence that the plant
A.
resulted from sexual reproduction.
B.
resulted from asexual reproduction.
C.
will develop many seeds.
D.
will have large leaves.
24. A parent cell includes the alleles B and b for a trait. When the cell divides, each daughter cell inherits one
allele.
What does this process indicate about the organism from which the parent cell originated?
A.
it is a female
B.
it is unicellular
C.
it reproduces sexually
D.
it is genetically diverse
Genetics (MSL Review)
Page 5 of 9
25. Which statement correctly explains how fertilization produces a diploid cell?
A.
RNA from male and female gametes is transcribed, producing DNA.
B.
Male and female gametes fuse, producing new combinations of alleles.
C.
The alleles from the female gamete are replicated, producing a complete genome.
D.
Beneficial alleles from each gamete replace their counterparts in the other gamete.
26. A human body cell has 46 chromosomes. Which diagram represents mitosis in a human body cell?
A.
B.
C.
D.
27. Use the Punnett square to answer the question that follows. In a monohybrid cross between two organisms heterozygous for a particular trait (Ff), what would be the
predicted ratio of the offspring's genotypes?
A.
1 FF: 3 Ff: 1 ff
B.
1 FF: 2 Ff: 1 ff
C.
2 FF: 2 Ff
D.
3 Ff: 1 ff
Genetics (MSL Review)
Page 6 of 9
28. In a gerbil population, the gene for coarse hair (H) is dominant, while the gene for smooth hair (h) is
recessive. One pet store found that most of their customers want coarse­haired gerbils. Which cross
between male and female gerbils will produce the greatest number of coarse­haired offspring?
A.
B.
C.
D.
Genetics (MSL Review)
Page 7 of 9
29. There are four blood types: A, B, AB, and O. The genes for both A and B blood types are dominant over O.
What is the probability of a father with blood type O and a mother with blood type AB producing a child with
blood type O?
A.
0%
B.
25%
C.
75%
D.
100%
30. In one breed of dog, short hair is the dominant allele (H) while long hair is the recessive allele (h).
If both parents have short hair and the offspring has long hair, which statement best describes the genetic
characteristics of the offspring?
A.
The offspring received mutated genes from both parents.
B.
The offspring received one recessive allele from each parent.
C.
The offspring received one dominant allele from each parent.
D.
The offspring received a dominant and recessive allele from both parents.
31. In a population of cats, the gene for long hair (H) is dominant and the gene for short hair (h) is recessive. A
breeder crosses a heterozygous long­haired male with a homozygous short­haired female.
In a litter of four kittens, what percentage should the breeder expect to have long hair?
A.
25%
B.
50%
C.
75%
D.
100%
Genetics (MSL Review)
Page 8 of 9
32. A snapdragon plant with red flowers (RR) is crossed with a snapdragon plant with white flowers (WW).
Snapdragon flowers show incomplete dominance. A punnet square of the cross is shown below.
If the cross produces four offspring, how many of each color flower would likely be produced?
A.
four red flowers
B.
four pink flowers
C.
two red flowers and two pink flowers
D.
two white flowers and two pink flowers
33. The Punnett square shows the cross between cabbage butterflies. B = white and b = yellow.
Why are all the offspring white?
A.
Both parent butterflies were dominant for white color.
B.
Only one parent butterfly carried recessive yellow traits.
C.
Only one parent carried dominant and recessive color genes.
D.
Both parent butterflies carried recessive genes for yellow color.
Genetics (MSL Review)
Page 9 of 9