Annette has red hair. Annette’s mother has red hair, while her father has brown hair. Which statement best explains the inheritance of Annette’s hair?

Annette inherited 50% of her hair color genes from her father and 50% from her mother.

Annette inherited 100% of her hair color genes from her father.

Annette inherited 100% of her hair color genes from her mother.

Annette inherited 25% of her hair color genes from her father and 75% from her mother.

In rabbits, the allele for black fur (B) is dominant over the allele for white fur (b). A cross between two black fur rabbits produces a white rabbit. What are the correct genotype and phenotype of the offspring?

genotype: bb phenotype: white fur

genotype: BB phenotype: white fur

genotype: white fur phenotype: Bb

genotype: white fur phenotype: bb

What can be inferred by analyzing the pattern of the presence of dimples among the friends and their parents?

Children inherit dimples from their parents.

Children inherit dimples from their mothers.

The characteristic for dimples is common among children.

The characteristic for no dimples is more common in parents.

What does the genotype for a trait BB represent?

Each letter represents the dominant allele inherited from each parent.

Both letters represent the dominant allele inherited from the mother.

Both letters represent the recessive allele inherited from the father.

Each letter represents the recessive allele inherited from each parent.

Parents have two children, one with blond hair and one with brown hair. How is this possible?

The children inherited different genes from their parents.

Both parents must have red hair.

Both parents must have brown hair.

The children inherited the same traits from their parents.

How is it possible for an organism to have a recessive phenotype for a trait such as white flowers in pea plants?

The organism inherits the recessive allele from both parents.

The organism inherits the recessive allele from one parent.

The organism fails to inherit the alleles for the trait from either parent.

The organism acquires the trait from the environment.

In pea plants, the smooth pea gene is dominant over the wrinkly pea gene. A farmer crossed two pea plants and obtained offspring pea plants with wrinkly peas. Which statement is true about inheritance of the trait by the offspring?

The offspring inherited two recessive alleles, one from each parent.

The offspring inherited two dominant alleles, one from each parent.

The offspring inherited two recessive alleles from the same parent.

The offspring inherited two dominant alleles from the same parent.

A mother has brown hair while a father has blond hair. Three of their four children have brown hair while one child has blond hair. Which statement best explains the reason that three children have brown hair, and only one child has blond hair?

All four children received the genes for hair color from both parents, but the gene for brown hair may be a dominant trait.

Three of the four children received the genes for hair color only from their mother, and the gene for brown hair must be a dominant trait.

All four children received the genes for hair color from both parents, but the gene for brown hair must be a recessive trait.

One of the four children received the genes for hair color only from their father, and the gene for brown hair may be a recessive trait.

A student creates a Punnett square based on the genotypes and phenotypes of a set of flowers, as shown. What is shown by the inheritance of pink flowers?

The alleles show incomplete dominance because the phenotype for two of the offspring is a blending of both alleles.

The white flower allele is dominant over the red flower allele because it is expressed in more genotypes than the red flower gene.

The alleles show codominance because they are both expressed in the genotype of the offspring with the pink flower phenotype.

The red flower allele is dominant over the white flower allele because it is always written first in the genotypes.

In humans, hair lines can have a widow's peak (H) or be straight (h). The Punnett square shows a cross between a mom with a widow's peak and a dad with a straight hairline. Which statement explains why all offspring have a widow's peak?

All the offspring have the dominant allele.

All the offspring have the recessive allele.

Both parents have a dominant allele.

Both parents have a recessive allele.

The table shows the phenotypes of plants produced from two plants with tall pea plants. The allele for tall plants (T) is dominant over the allele for short plants (t). Phenotype : Number of Offspring tall plants : 21 short plants : 6 What can be concluded about the genotypes of the parents?

One parent is TT and the other is Tt

One parent is Tt and the other is tt

In humans, the presence of dimples is dominant over a lack of dimples. If two people that are hybrids for dimples have children, what can be concluded about the genotypes for the offspring? (choose 2 answers)

There is a 75% chance that the offspring will have dimples.

There is a 25% chance that the offspring will not have dimples.

There is a 50% chance the offspring will be dd AND a 50% chance they will be Dd.

There is a 50% chance the offspring will be DD AND a 50% chance they will be dd.

Mutations in DNA are very common since the human body copies millions of pieces of DNA. A student claims that most of these mutations in DNA are harmful. Is the student’s claim correct?

No. Most mutations are corrected by enzymes in the body before the mutations take effect.

Yes. Most mutations stop the cells from functioning properly.

Yes. Most mutations are inherited and harm future generations.

No. Most mutations are beneficial.

Genetics Test Review

Science

5th - 9th Grade

NGSS covered

Used 63+ times

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which statement about DNA is true?

Different people can have the same copy of DNA in their cells.

DNA is made up of genes that carry hereditary information.

DNA controls the genotype but not the phenotype of an organism.

DNA controls the genotype only in the second and third generations.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What relationship exists between genes and chromosomes?

Genes are located on chromosomes which are found in the nucleus of cells.

Genes produce chromosomes which transmit traits from one generation to another.

Genes are made up of chromosomes which move from the nucleus to the cytoplasm.

Genes and chromosomes produce alleles which determine the phenotype of offspring.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS1-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

James has blue eyes like his father and a widow's peak like his mother. What explains James having similar traits as his parents?

living together with his parents

performing similar activities like his parents

observing and learning from his parents

inheritance of genes from his parents

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which statement summarizes the relationship between chromosomes, DNA, and genes?

Genes compose the DNA located on the chromosomes.

DNA makes up the genes located on the chromosomes.

DNA makes up the chromosomes located on genes.

Chromosomes make up the genes located on the DNA.

Tags

NGSS.HS-LS3-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What do the two letters of the genotype represent?

An organism's outward appearance is its phenotype.

An organism's genotype is a result of its phenotype.

Genes for a trait come from either the mother or father but not both parents.

Traits are passed from both parents to offspring through pairs of genes.

Tags

NGSS.HS-LS3-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Jamie inherited his height from his parents. What determines the inheritance of Jamie’s height?

chloroplast

cytoplasm

genes

membrane

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which statement describes why eye color is an inherited trait?

It depends on the color of light entering the eye.

It is passed from the parents to the offspring.

It depends on the amount of vitamin A in the diet.

It changes as a child grows to become an adult.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

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Genetics Test Review

Which statement about DNA is true?

What relationship exists between genes and chromosomes?

James has blue eyes like his father and a widow's peak like his mother. What explains James having similar traits as his parents?

Which statement summarizes the relationship between chromosomes, DNA, and genes?

What do the two letters of the genotype represent?

Jamie inherited his height from his parents. What determines the inheritance of Jamie’s height?

Which statement describes why eye color is an inherited trait?

Annette has red hair. Annette’s mother has red hair, while her father has brown hair. Which statement best explains the inheritance of Annette’s hair?

In rabbits, the allele for black fur (B) is dominant over the allele for white fur (b). A cross between two black fur rabbits produces a white rabbit.What are the correct genotype and phenotype of the offspring?

What can be inferred by analyzing the pattern of the presence of dimples among the friends and their parents?

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Discover more resources for Science

Annette has red hair. Annette’s mother has red hair, while her father has brown hair.
**Which statement best explains the inheritance of Annette’s hair?**

In rabbits, the allele for black fur (B) is dominant over the allele for white fur (b). A cross between two black fur rabbits produces a white rabbit.
What are the correct genotype and phenotype of the offspring?