G = green, g = yellow The genotype for a yellow plant is...

all of the choices result in yellow

Which answer best describes codominant alleles?

Neither are dominant or recessive

What type of inheritance do two alleles have if their traits blend together?

Mendelian Inheritance (Complete Dominance)

Looking at the karyotype, is this person male or female, and how do you know?

There is no way to tell from a karyotype.

The karyotype, or chromosomal profile, for humans is shown. A karyotype can be used to investigate genetic disorders. The chemical colchicine is used in the production of karyotypes. Colchicine prevents spindle fibers from forming during the cell cycle. What is a result of preventing spindle fibers from forming?

Mitotic division stops in metaphase and cannot proceed to anaphase.

The cell cycle skips G0 phase and repeats G1 phase

Mitotic division is skipped, and the cell cycle proceeds to cytokinesis

The cell cycle skips S phase and proceeds to G2 phase.

A scientist analyzing the karyotype shown above notices that the 23rd pair of chromosomes shown in the karyotype contains an X chromosome and a Y chromosome. The scientist can tell from this karyotype that –

there is a mutation in the 23rd pair of chromosomes

the karyotype is not from a human but from another type of animal

John and Sarah had a child born with the genetic disease cystic fibrosis. Both John and Sarah were normal, showing no signs of this disorder. How is it possible for them to have a child with this disease?

Cystic fibrosis must be a recessive trait disorder hidden in both parents’ genotype, but not showing in the phenotype, that could be passed on to offspring.

Cystic fibrosis must be a dominant trait disorder hidden in both parents' genotype, but not showing in the phenotype, that could be passed on to offspring.

Cystic fibrosis must be a dominant trait disorder hidden in one parents’ genotype, but not showing in the phenotype, that could be passed on to offspring.

Cystic fibrosis must be a recessive trait disorder hidden in one parents’ genotype, but not showing in the phenotype, that could be passed on to offspring

CRISPR-Cas9 is a genetic modification technique that edits parts of the genome of an organism. Using this technique scientists can add, remove, or modify sections of the DNA sequence. How can scientists use this technique to control gene expression?

By activating or deactivating specific genes

By calculating the number of genes different organisms produce

By identifying how closely related one individual is to another

By determining the number of chromosomes in an organism

Gametes produced by an organism contain a combination of genes from that organism. In every gamete, this combination is —

different due to independent assortment during meiosis

the same because it is created from the same DNA

the same because chromosomes are copied prior to meiosis

different due to DNA replication prior to mitosis

Exposure to the building material asbestos has been linked to certain types of cancers. Asbestos causes mutations in the p53 gene, which controls tumor suppression. Which statement best explains why people with cancer due to asbestos exposure do not pass the mutation on to their offspring?

The mutation occurred in somatic cells.

The mutation occurred in gametic cells.

The diagram shows how specialized body cells can develop. Which of the following best explains why cells that contain the same genetic material do not develop into the same types of cells?

Because internal or external stimuli can trigger the activation of specific genes in the DNA of cells

Because random mutations can occur in the DNA of cells during early embryonic development

Because messenger RNA is converted to transfer RNA when cell differentiation begins

Because chemical signals that are released during the cell cycle can result in the linking of similar genes

Genetics 2019-2020

Quiz

•

Biology

•

9th Grade

•

Practice Problem

•

Medium

•

NGSS

HS-LS3-1, HS-LS3-2, MS-LS1-2

+2

Standards-aligned

TAYLOR COAD

Used 71+ times

FREE Resource

49 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A homozygous dominant dog with brown fur is crossed with a heterozygous dog with brown fur. What are the percentages of the possible genotypes?

100% BB

75% BB and 25%Bb

50 % BB and 50% Bb

50% Bb and 50% bb

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The man who studied genetics and came up with genetics is

Watson

Crick

Mendel

Darwin

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Genotype refers to the ...

physical expression of the genes

the possible combination of alleles in a gene

whether an allele is dominant or recessive

how an organism will appear

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Squidward has light blue skin, and his genotype for this trait is Bb. Would Squidward be considered a purebred or hybrid for light blue skin?

Purebred

Hybrid

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

An offspring will receive how many alleles from each parent to determine a specific trait?

one

two

three

five

Tags

NGSS.HS-LS3-1

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following is a phenotype?

BB

Bb

bb

Blue eyes

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a phenotype

The genetic make up (code)

The physical trait

Tags

NGSS.HS-LS3-1

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Genetics 2019-2020

49 questions

A homozygous dominant dog with brown fur is crossed with a heterozygous dog with brown fur. What are the percentages of the possible genotypes?

The man who studied genetics and came up with genetics is

Genotype refers to the ...

Squidward has light blue skin, and his genotype for this trait is Bb. Would Squidward be considered a purebred or hybrid for light blue skin?

An offspring will receive how many alleles from each parent to determine a specific trait?

Which of the following is a phenotype?

What is a phenotype

the passing of genetic traits from parent to offspring.

having two of the same genes for the trait (sometimes called purebred).

having two different genes for a trait (sometimes called hybrid).

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