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WorksheetsReproduction & Heredity
Total questions: 25
Worksheet time: 13mins
Name
Class
Date
1.
Which of the following is an advantage of asexual reproduction?
a)
It increases genetic diversity
b)
More energy required
c)
More time require
d)
No mate is required
2.
Heredity is defined as:
a)
The passage of genetic instructions from one generation to the next generation
b)
The adaptations of an organism to its environment
c)
The ability to reproduce within an organism
d)
The process of species becoming more complex over many generations
3.
If one parent has sickle-cell anemia (Hh) and the other parent is a carrier (hh), what is the probability that their child will have sickle-cell anemia? Draw a Punnett square
a)
25%
b)
100%
c)
50%
d)
75%
4.
In people brown hair (B) is dominant over red hair (b). If a husband is Bb and his wife is bb, what is the probability that their first baby will have red hair? Create a Punnett square to help.
a)
50%
b)
25%
c)
75%
d)
100%
5.
In some animals, brown eyes (B) are dominat over blue eyes (b). Which of these genotypes will complete this Punnett square?
a)
BB
b)
B
c)
Bb
d)
bb
6.
A cell divides to form two cells during a process called:
a)
Photosynthesis
b)
Mitosis
c)
Protein synthesis
d)
Chemiosmosis
7.
A scientists wants to determine which fertilizer is more effective--fertilizer X or fertilizer Y. The best way for her to proceed would be to design an experiment with?
a)
2 groups of plants- group fertilized with Y and a control group with no fertilizer
b)
3 groups of plants- a group fertilized by X, a group fertilized by Y and a control group with no fertilizer
c)
2 groups of plants- a group fertilized by X and a control group with no fertilizer
d)
3 groups of plants- a group fertilized by X, a group fertilized by both X & Y, and a control group with no fertilizer
8.
A widows peak is a V-shaped area of the hairline in the center of the forehead. The allele for having a widow's peak is dominant to the allele for not having a widow's peak. If 2 parents do not have widow's peaks, what is the probability that their child will have a widow's peak?
a)
75%
b)
25%
c)
50%
d)
0%
9.
In humans, the allele for brown eyes (B) is dominant to the allele for blue eyes (b). What is the probability that two herterozygous browned eyed parents will have a child with blue eyes? Create a Punnett square to help.
a)
75%
b)
0%
c)
50%
d)
25%
10.
A _______ can be defined as a basic unit of hereditary information that influences a particular trait or group of traits.
a)
Zygote
b)
Gene
c)
Genome
d)
Chromosome
11.
The offspring of a sexually-reproducing organism receives:
a)
Genetic material that is not related to either parent
b)
An exact copy of each parent's genetic material
c)
An exact copy of one parent's genetic material
d)
Half of its genetic material from each parent
12.
Asexual reproduction produces offspring that are genetically _____________ to the parent.
a)
Unrelated
b)
Similar
c)
Identical
d)
Opposite
13.
A gene or trait that appears or expresses itself over a recessive trait is called a/an:
a)
Influential gene
b)
Dominant gene
c)
Mutation
d)
Chromosome
14.
Which of the following is an example of conduction?
a)
Campers warm up while sitting by a campfire
b)
A metal spoon becomes warm when placed in a cup of hot tea
c)
Leftovers become warm when reheated in the microwave
d)
A dog's bowl of water warms up out in the Sun
15.
How can twins be identical?
a)
They have the same parents
b)
They have the same genetic information
c)
They are born at the same time
d)
They are raised in the same environment
16.
Which of the following is an advantage of sexual reproduction?
a)
No mate required
b)
Less time is required
c)
It increases genetic variety
d)
Less energy is required
17.
In pea plants , the allele for tallness (T) is dominant to the allele for shortness (t). In the cross between a tall pea plant and a short pea plant show, what is the probability that the resulting offspring will be tall?
a)
75%
b)
25%
c)
100%
d)
50%
18.
All organisms require a set of instructions that specify its traits. The instructions that are responsible for all the inherited traits of an organism?
a)
Are passed from offspring to the parent
b)
Are encoded in molecules of genetic material
c)
Are stored in the organism's brain only
d)
Are formed after an organism is fully-grown
19.
In humans, the allele for attached ear lobes (e) is recessive to the allele for free ear lobes (E). If both of Lisa's parents have attached ear lobes, then:
a)
Lisa may have either attached ear lobes or free ear lobes
b)
Lisa must have her ears pierced
c)
Lisa must have attached ear lobes
d)
Lisa must have free ear lobes
20.
Meredith notices that different plant fertilizers are made up of different chemicals. Some fertilizers are high in nitrogen. Other fertilizers are high in phosphorus., Meredith hypothesizes that nitrogen right fertilizers are best to grow fruit crops such as strawberries. When she is designing her experiment, what should be her variable?
a)
Type of fertilizer
b)
Amount of light given to plants
c)
Type of fruit crop
d)
Amount of water given to plants.
21.
Cardinals reproduce sexually. Many types of fungi can reproduce asexually by producing spores. A fungus does not need to _____ to reproduce, but a cardinal does.
a)
Expend energy
b)
Find a mate
c)
Find food
d)
Reach maturity
22.
The process of cell division that creates sex cells in sexually reproducing organisms is called?
a)
Mitosis
b)
Replication
c)
Meiosis
d)
Translation
23.
Some people have attached ear logs and some people have free ear lobs, The difference s in these traits are caused by?
a)
Differences in environemnet
b)
Differences in genes
c)
Differences in diet
d)
Differences in personality
24.
Which of the following is an example of convection?
a)
A hot object transferring heat to a cooler one
b)
The rays of the Sun warming theEarth
c)
Hot air rising and cooler air falling
d)
A hot oven warming the air round it
25.
Cathy conducts a scientific investigation. How can she make sure her results are valid?
a)
Repeat the investigation several times
b)
Write a report about her results
c)
Confirm that her results match her hypothesis
d)
Use metric measuring units during her investigation
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