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Intro to Genetics Pre-Test

Last updated almost 4 years ago
48 questions
Note from the author:
This is a quiz to see how much you remember about genetics! The objective of this test is to help me see what you can remember from previous genetics instruction. Please DO NOT research answers. I need to know what you currently know, not what you can google.
Your score will not count against you. You will not see if your answers are correct until after everyone has finished taking the pre-test, even after you submit. Thanks and give it your best try!
This is a quiz to see how much you remember about genetics! The objective of this test is to help me see what you can remember from previous genetics instruction. Please DO NOT research answers. I need to know what you currently know, not what you can google.
Your score will not count against you. You will not see if your answers are correct until after everyone has finished taking the pre-test, even after you submit. Thanks and give it your best try!
1

Which of the following supports the claim that the environment can affect genetic traits?

1

Variation in human skin color is an example of

1

In rabbits, there are four different versions of the gene for fur color. What pattern of inheritance is this?

1

Situations in which one allele for a gene is not completely dominant over another allele for that gene are called

1

A breed of chicken shows codominance for feather color. One allele codes for black feathers, another codes for white feathers. The feathers of heterozygous chickens of this breed will be

1

Organisms that have two identical alleles for a particular trait are said to be

1

A heterozygous tall pea plant is crossed with a short plant. The probability that an F1 plant will be tall is

1

If a pea plant's alleles for height are "tt", what is true of its parents?

1

When Gregor Mendel crossed a tall pea plant with a short pea plant, the F1 pea plants inherited

1

The different forms of a gene are called

1

Which of the following traits is controlled by multiple alleles in humans?

1

Tall (T) is dominant to short (t) in pea plants. Which of the following represents a genotype of a pea plant that is heterozygous for height?

1

An individual heterozygous for a trait and an individual homozygous recessive for the trait are crossed and produce offspring that are about 50/50 mix of

1

The phenotype of an organism

1

The scientific study of heredity is called

1

The passing of traits from parents to offspring is called

1

Genetics is the branch of biology that involves the study of how different traits are transmitted from one generation to the next.

1

Mendel discovered predictable patterns in the inheritance of traits.

1

Mendel's initial experiments were monohybrid crosses.

1

In Mendel's experiments, the recessive traits appeared in the F2 generation in approximately 25 percent of the plants.

1

A dominant allele masks the effect of a recessive allele.

1

Individuals must display a trait in order for it to appear in their offspring.

1

The allele for a recessive trait is usually represented by a capital letter.

1

Heterozygous individuals have two of the same alleles for a particular gene.

1

In heterozygous individuals, only the recessive allele is expressed.

1

A Punnett square represents the phenotype of an organism.

1

In codominance, two dominant alleles are expressed at the same time.

1

All genes have only two alleles.

1

A trait is a specific characteristic that can vary from one individual to another.

1

A trait in an unidentified plant is controlled by one gene that has two alleles. One allele is dominant over the other. According to Mendel’s principles, one fourth of the offspring made from a cross between two heterozygous plants will show the recessive trait.

1

For the trait of blood type in humans, there is an allele for Type A, an allele for Type B, and an allele for Type O. Each person inherits one of these alleles from each of their parents, and their blood type is determined by what combination of these alleles they receive. Blood type is inherited as a polygenic trait.

1
In humans, the dimples allele is dominant and the non-dimples allele is recessive. A person who is homozygous recessive would create gametes that contain __________.
1
In humans, the dimples allele is dominant and the non-dimples allele is recessive. A person who is heterozygous would create gametes that contain __________.
1
A dihybrid cross can be done by drawing a punnett square containing __________ boxes.
1
A monohybrid cross can be done by drawing a punnett square containing __________ boxes.
1
A genetic cross that involves two characteristics is called a __________.
1
A genetic cross that involves only one characteristic is called a __________.
1
A table used to figure out the theoretical results of a genetic cross is called __________.
1

When writing a heterzygous genotype, you must

1
When choosing letters for the alleles in a monohybrid cross, you must choose a __________ for the recessive allele.
1

An organism's phenotype is the

1

Mendel chose pea plants because

1

What is the term used to describe an individual when two different alleles are present (a hybrid)?

1

What is the term used to describe an individual when two identical alleles are present (a purebreed)?

1

The "weaker" of two alleles, only expressed if two alleles are present:

1

The "stronger" of two alleles; it will get expressed even if only one allele is present:

1

Which of the following statements are true?

1

This man is referred to as the "Father of genetics":