Download Genetics - Midway ISD

7th Grade Science
Genetics Review
#1
The passing of
traits from one
generation to the
next.
A: Dominant traits
B: Heredity
C: Trait acquisition
D:
None of these
B. Heredity
#2
Which
would result
in the most
diverse
offspring?
Planting a potato
A: cutting to grow into a
new potato
Bees pollinating from the
B: flower of one plant to the
flower of another
C: A flower self-pollinating
D:
None of these
B. Bees pollinating
from the flower of
one plant to the
flower of another
#3
Mom and dad both have
brown eyes. They have
two children who also
have brown eyes. This
would be an example of
a/an _______ _______
A:
Earned trait
C: Inherited trait
B: Acquired trait
D:
Learned trait
C. Inherited trait
#4
A brown haired and a blond haired parent have
two children, both with brown hair.
The hidden blond hair is said to be _________
The visible brown hair is said to be __________ .
A: dominant \ recessive
B:
internal \ external
C: recessive \ dominant
D:
external \ internal
C.
recessive/dominant
#5
When looking at DNA of three unknown organisms,
you find that they all have the same sequence
of DNA. Which statement below is the most logical
explanation?
All reproduced
A: asexually from a
common parent
B:
All were reproduced
sexually from a single
pair of parents
C: Both
D:
Neither
A. All reproduced
asexually from a
common parent
#6
Of what chemicals
are chromosomes
made?
A: Glucose
B:
NBA
C: DNA
D:
RNA
C. DNA
#7
Reproduction where offspring
come from a single parent, and
inherit the genes of that parent
only.
A: Asexual reproduction
B:
Sexual reproduction
C: Both
D:
Neither
A. Asexual reproduction
#8
Reproduction where a new organism is created
when cells from two organisms combine.
A: Asexual reproduction
B:
Sexual reproduction
C: Both
D:
Neither
B. Sexual reproduction
#9
What type of reproduction will give you the most
diverse offspring (many different types of offspring)?
A: Asexual reproduction
B:
Sexual reproduction
C: Both
D:
Neither
B. Sexual reproduction
#10
*A Starfish re-growing an arm when cutoff.
*Placing a piece of potato in a pot of soil.
These are examples of ________ _________.
A: Asexual reproduction
B:
Sexual reproduction
C: Both
D:
Neither
A. Asexual reproduction
#11
*A littler of kittens
*A bee transferring pollen from one plant to another.
These are examples of ______ _________.
A: Asexual reproduction
B:
Sexual reproduction
C: Both
D:
Neither
B. Sexual reproduction
#12
Traits
# of student exhibit the trait
Brown hair
30
Attached ear lobe
9
Widows Peak
14
Tongue Rolling
22
Which of the traits in this chart
is most likely a dominant trait?
A:
Brown hair
C: Widows Peak
B: Attached ear lobe
D:
Rolling Tongue
A. Brown Hair
Y – Yellow
Y
y
y
Yy
yy
y
Yy
yy
y - Green
A:
C:
75% Yellow
25% Green
25% Yellow
75% Green
#13
In a pea plant, the color yellow
is dominant and green is
recessive for flowers. If a
heterozygous yellow pea plant
and a homozygous green pea
plant are crossed, what color
seeds will result?
B:
D:
50% Yellow
50% Green
100% Yellow
0% Green
B. 50% Yellow
50% Green
F – Free
F
f
F
FF
Ff
f
Ff
ff
f - Attached
A:
C:
75% Free
25% Attached
25% Free
75% Attached
#14
In people, free earlobes are
dominant and attached earlobes
are recessive. Both mother and
father are hybrid for free
earlobes. What are the
offspring?
B:
D:
50% Free
50% Attached
100% Free
0% Attached
A. 75% Free
25% Attached
#15
Scientists have discovered that Tasmanian Devils
are descended from the same family. As a result,
all of the Devils in the population have almost
identical sets of genes. Although they reproduce
sexually, this population is similar to a
population that reproduces asexually.
Why is this sexually reproducing population of
Tasmanian devils similar to a population of
organisms that reproduce asexually?
A:
C:
Because of interbreeding
within the same
population of Devils with
identical genes.
Both
B:
Because of breeding with
Devils of other
populations with different
genes.
D:
Neither
A. Because of interbreeding
within the same population
of Devils with identical genes.
#16
Scientists have discovered that Tasmanian
Devils are descended from the same family. As
a result, all of the Devils in the population have
almost identical sets of genes. Although they
reproduce sexually, this population is similar to
a population that reproduces asexually.
If a disease strikes the Tasmanian Devil
Population, what is most likely to happen to
their population?
A:
It would continue to
survive and reproduce
due to interbreeding
of the population.
C: Both
It would all die because the
disease would be spread
B: due to interbreeding of the
population.
D:
Neither
B. It would all die
because the disease
would be spread due
to interbreeding of
the population.
Great Job!!!!
Thank you for playing!