WorksheetsHeredity Review
Total questions: 15
Worksheet time: 8mins
Which of the following is NOT an example of natural selection?
people breeding dogs to be less aggressive
bacteria populations becoming resistant to antibiotics
bird beak shapes becoming more dominant due to available food
moths becoming darker over generations during a time of heavy pollution
A peach tree farmer lost the majority of his crops to insects last season. He wants to make sure the next set of trees he grows do not have the same fate. Which best describes what the peach tree farmer should do?
The farmer should breed his peach trees with peach tress that are resistant to insects.
The farmer should breed his peach trees with peach trees that grow taller than his
The farmer should breed his peach trees with peach trees that are resistant to cold.
The farmer should breed his peach trees with peach trees that have a better flavor.
Malaria is a disease caused by a protist that travels into a person's blood stream after a mosquito bite. People who carry the gene for sickle cell anemia are less likely to get malaria because they have misshapen blood cells that do not allow the protist to travel easily in the blood stream. People with sickle cell anemia
carry more oxygen in their blood than other people.
developed it in response to contracting malaria.
inherited this gene from a previous generation
are able to control how their blood is shaped.
Each parent gives one sex chromosome to their offspring. Whose chromosome determines the sex of the child?
father
mother
grandfather
grandmother
Which of the following best explains why offspring often resemble their parents?
Offspring inherit similar genes from their parents.
Parents select the traits that their offspring inherit.
The environment controls what genes are inherited.
There is a unique set of identical genes for each species.
A scientist collects data on the height of parents and their children. He uses families that live in the same environment, eat the same diet, and have the same health histories. He finds that the tall parents usually have tall children, and the short parents usually have short children. What is the main factor responsible for the scientist's findings?
heredity, because genes pass from one generation to the next
diet, because food is the only factor that affects height
health history, because illness stops a person from growing
environment, because air quality is the main factor that affects height
If the genotype of an individual is "Yy", what conclusion can be drawn?
The individual is heterozygous.
The individual is homozygous
The individual is recessive
The individual is a phenotype.
The Punnett square below shows the results of a genetic cross between a heterozygous mother and a homozygous recessive father.
What can one conclude from the results of the Punnett square?
There is a 100% chance that the offspring will have the same genotype as the mother.
There is a 100% chance that the offspring will have the same phenotype as the father.
There is a 50% chance that the offspring will have the same phenotype and genotype as the father.
There is a 0% chance that the offspring will have a genotype that is the same as the mother.
A homozygous brown mouse mates with a heterozygous brown mouse. The allele for brown fur (B) is dominant over the allele for tan fur (b). What percentage of the offspring will most likely have brown fur?
25%
50%
75%
100%
0%
Select four organisms that reproduce sexually.
kangaroo
fungi
duckbill platypuses
spiny anteaters
dolphins
Maria owns a female dog. Her dog has been a champion at several dog shows. When it is time for Maria's dog to produce puppies, Maria carefully chooses the male dog who will be the father of the puppies, based upon his traits. In this way, she hopes to produce puppies that can also win championships. What form of biotechnology is this?
artificial selection
genetic engineering
asexual reproduction
asexual reproduction
Patricia breeds rabbits to sell as pets. She noticed that rabbits with longer, softer ears sell better than those with short ears. Which best describes what Patricia should do to sell the most rabbits?
Patricia should breed together a rabbit with soft fur and a rabbit with rough fur.
Patricia should breed the rabbits with the longest, softest ears together.
Patricia should breed together a rabbit with black fur and a rabbit with white fur
Patricia should breed a rabbit with long, soft ears with a rabbit with short ears.
The modern domesticated dog is thought to be descended from the wild wolf. There are currently many breeds of domesticated dogs which vary greatly in appearance. Which of the following best describes how the modern day dog has changed from its ancestor, the wolf?
Humans have cloned dogs for desirable traits, causing many differences among breeds.
Humans have bred dogs for desirable traits, causing many differences among breeds.
The modern dog gradually changed over time due to natural selection.
The modern dog quickly changed due to extinction.
A green-seeded pea plant and a yellow-seeded pea plant have offspring with all yellow seeds. What is the most likely reason?
The offspring only inherited genes from the yellow-seeded parent.
The offspring inherited more genes from the yellow-seeded parent.
The genes from the yellow-seeded parent were dominant.
The genes from the yellow-seeded parent were recessive.
Jan has a cat that is about to have kittens. She wonders how much they will look like their mother. Which of the following best explains the physical resemblance that kittens often have to their mother?
They have some characteristics of the mother cat because they are produced through sexual reproduction.
They are identical to the mother cat because they are produced through sexual reproduction.
They are identical to the mother cat because they are produced through asexual reproduction.
They have some characteristics of the mother cat because they are produced through asexual reproduction.
