Why does the amount of DNA increase before cell division?

It is important that mitosis creates new cells within the same number of chromosomes as the original cell.

Mitosis triples the number of chromosomes to give new cells a better chance of survival

Deletion of chromosomes through mitosis is essential to maintain a species in the future

Mitosis forms sperm and eggs which must have half the number of chromosomes as the original cell.

Which of the following best explains why different cells within an individual organisms function differently?

Proteins regulate which genes within a cell are activated and which are not

The functions of cells are determined by the chemical messengers sent to them.

The functions of individual cells depends on the cell's location in the body.

Each type of cell within an organism contain unique genetic information

Which of the following best explains why red blood cells and skin cells have different structures and functions, despite containing the same DNA?

Different cells express different combination of genes

Different cells replicate their DNA differently

Different cells contain different number of genes.

Different cells can modify the types of genes on the DNA

Cystic fibrosis is a recessive disorder. On order to have the disease you have to have the recessive genotype. If two people who are heterozygous for the trait have a baby, what is the probability that their child will express symptoms of cystic fibrosis.

25% chance the offspring will express full symptoms

100% chance the offspring will express full symptoms

75% chance the offspring will express full symptoms

50 % chance the offspring will express full symptoms

Cystic fibrosis is a heritable recessive disorder affecting the exocrine glands It causes the production of abnormally thick mucus, leading to the blockage of the pancreatic ducts, intestines, and bronchi and often resulting in respiratory infections. Cystic Fibrosis is caused by a defect in the CFTR gene on chromosome 7. This gene makes a protein that controls the movement of salt and water in and out of your body’s cells. People who have Cystic fibrosis, the gene makes a protein that doesn’t work well. This causes thick, sticky mucus and very salty sweat. Choose the two statements that correctly outline the impact of the disorder above.

Patients diagnosed with this disorder will experience respiratory problems.

Individuals with the cystic fibrosis mutation cannot regulate chloride transport

Overtime, patients will slowly lose symptoms of the disorder due to DNA only replicating one time during early stages of development

Individuals considered to be heterozygous carriers will experience full symptoms

Individuals without the cystic fibrosis mutation cannot regulate chloride transport

Which statement is true about meiosis

It produces 4 haploid sex cells

It produces identical daughter cells

Its needed for growth and repair

Some traits do not follow Mendelian inheritance. For instance Snapdragons (a flower) follows incomplete dominance. The flowers can be Red (RR), Pink (Rr) or withe (rr). If a Red flower is crossed with a Pink flower what are phenotypes of the offspring?

25 % Red, 50% Pink, and 25% White

Which statements explain how genetic variation occurs in a family?

Meiosis produces 4 genetically different daughter cells

Mutations can occur in the DNA resulting in different traits being expressed

Environmental factors can influence the expression of physical traits.

Crossing over occurs during mitosis reproducing genetically different cells

All traits come from the fathers side of the family, so through generations children start to look more like their paternal family.

Gene Expression

Quiz

•

Biology

•

10th - 12th Grade

•

Practice Problem

•

Hard

•

NGSS

HS-LS1-4, HS-LS1-1, HS-LS3-2

+3

Standards-aligned

JESSICA BECKEM

Used 19+ times

FREE Resource

19 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

DNA in the nucleus carries the genetic code for making proteins in ribosomes. The diagram shows a model of DNA. Which part of the DNA molecule codes for the amino acid sequence in the protein?

Phosphate

Nitrogen bases

Sugar

Deoxyribose

Tags

NGSS.HS-LS1-1

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

The process by which the Genetic code of DNA is copied into a strand of RNA is called

translation

transcription

replication

transformation

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

in messenger RNA, each codon specifies a particular

nucleotide

purine

amino acid

pyrimidine

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following observations would support the claim that DNA determines the structure of proteins produced by cells?

Similar DNA sequences are found in organisms that produce the same protein

Both DNA and the production of proteins was observed in early life forms

Organisms that produce proteins have different lengths of DNA

DNA is found in the nucleus of all cells that produce proteins

Tags

NGSS.HS-LS1-1

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which event occurs first during the process of protein synthesis?

A tRNA amino acid enters the ribosome and pairs with a codon of mRNA.

The ribosome binds to the mRNA molecule

A mRNA molecule is transcribed from DNA and released from the nucleus

The ribosome encounters a stop codon and triggers the release of a newly built protein.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What process is responsible for new tissue growth and the healing of cuts.

duplication

transcription

meiosis

mitosis

Tags

NGSS.HS-LS1-4

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which statement is true about mitosis?

It makes gametes

It produces sperm and egg cells

It makes identical cells

It produces cells with half the number of chromosomes.

Tags

NGSS.HS-LS1-4

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Gene Expression

19 questions

DNA in the nucleus carries the genetic code for making proteins in ribosomes. The diagram shows a model of DNA. Which part of the DNA molecule codes for the amino acid sequence in the protein?

The process by which the Genetic code of DNA is copied into a strand of RNA is called

in messenger RNA, each codon specifies a particular

Which of the following observations would support the claim that DNA determines the structure of proteins produced by cells?

Which event occurs first during the process of protein synthesis?

What process is responsible for new tissue growth and the healing of cuts.

Which statement is true about mitosis?

Why does the amount of DNA increase before cell division?

Differentiation of cells is responsible for which feature of complex organisms? Without differentiation, complex organisms would not

Uncontrolled cell division occurs in

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