Free Printable DNA Checkpoint

Worksheets

DNA Checkpoint

Total questions: 9

Worksheet time: 5mins

Name

Class

Date

What is the shape of a DNA molecule called?

Spiral Staircase

Double Helix

Twisted Ladder

Twisted Staircase

One DNA strand consists of millions of nucleotides. What three things are nucleotides made up of?

Deoxyribose, phosphate, one nitrogenous base

Sugar, phosphate, and polymerase

Deoxyribose, phosphate, and 4 nitrogenous bases

Deoxyribose, sugar, one nitrogenous base

The "steps" or "rungs" of the DNA ladder are made of:

Phosphates and bases

Sugars

Sugars and phosphates

Nitrogenous Bases

The “backbone” of the DNA ladder is made of:

Sugars and phosphates

Sugars

Bases

Phosphates and bases

What is a chromosome?

A chromosome is a thread-like structure made up of DNA and proteins that carries genetic information in the form of genes.

A chromosome is a structure found only in animals.

A chromosome is a small molecule that carries genetic information.

A chromosome is a type of cell found in plants.

Match the following nitrogenous bases:

Adenine

Thymine

Guanine

Cytosine

Thymine

Adenine

Cytosine

Guanine

What is a gene?

A gene is a segment of DNA that contains the instructions for building and maintaining an organism.

A gene is a type of protein found in cells.

A gene is a small molecule that transports proteins.

A gene is a structure in the nucleus of a cell that stores energy.

A phenotype is:

The study of inherited traits

The physical appearance

The genetic material of an organism

The process of cell division

A trait is:

A temporary state of mind

A physical feature of a person

A genetically determined characteristic

A learned behavior

100 %

DNA Checkpoint

Total questions: 9

Worksheet time: 5mins

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