REVIEW: Genes, Chromosomes, and DNA

Front

What are the four nitrogenous bases in DNA?

Back

Guanine, Cytosine, Thymine, Adenine.

Front

What is the condensed form of DNA called?

Back

Chromosome.

Front

What are Sister Chromatids?

Back

Exact copies of each other attached at the centromere.

Tags

NGSS.HS-LS1-4

Front

What makes up the 'rungs of the ladder' in a DNA molecule?

Back

Nitrogen base pairs.

Front

What is a gene?

Back

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

Tags

NGSS.HS-LS1-1

Front

What is the function of chromosomes?

Back

To organize and protect DNA during cell division.

Tags

NGSS.HS-LS1-4

Front

What is the structure of DNA?

Back

A double helix made of two strands of nucleotides.

Tags

NGSS.HS-LS1-1

Front

What are homologous chromosomes?

Back

Chromosomes that have the same genes but may have different alleles.

Front

What is the role of nucleotides in DNA?

Back

They are the building blocks of DNA, consisting of a sugar, a phosphate group, and a nitrogenous base.

Front

What is the difference between DNA and RNA?

Back

DNA is double-stranded and contains thymine, while RNA is single-stranded and contains uracil.