DNA and Chromosomes

Front

A always pairs with?

Back

T

Front

When the two alleles are different, this is called?

Back

Heterozygous

Front

This allele will only be expressed if there are 2 copies present. What is it called?

Back

Recessive

Front

Some mutations occur _______________.

Back

Both when errors are made in copying the DNA and due to mutagens in the environment.

Tags

NGSS.HS-LS3-2

Front

What is an allele?

Back

Different versions of genes.

Tags

NGSS.HS-LS3-2

Front

What is DNA?

Back

DNA (Deoxyribonucleic Acid) is the molecule that carries the genetic instructions for life.

Front

What are chromosomes?

Back

Chromosomes are long strands of DNA wrapped around proteins, containing many genes.

Front

What is the function of DNA?

Back

DNA stores and transmits genetic information.

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

Front

What is a gene?

Back

A gene is a segment of DNA that contains the instructions for making a specific protein.

Tags

NGSS.HS-LS1-1

Front

What is homozygous?

Back

Homozygous refers to having two identical alleles for a particular gene.