Biology STAAR Category 2 Review

What are the three main parts of a nucleotide?

• carbon, hydrogen, and oxygen

• phosphate, sugar, and nitrogen base

• phosphate, sulfate, and nitrate

• adenine, thymine, and uracil

In DNA, adenine pairs with _______, while guanine pairs with _______.

• uracil / cytosine

• thymine / uracil

• thymine / cytosine

• adenine / guanine

What is the name of the sugar in DNA?

• deoxyribose

• ribose

• glucose

• galactose

What is the name of the sugar in RNA?

• deoxyribose

• ribose

• glucose

• maltose

Which nitrogen base does RNA have instead of thymine?

• adenine

• cytosine

• guanine

• uracil

The process in which a section of DNA is used to produce a copy of mRNA is called:

• transcription

• translation

• mutation

• inheritance

Tags

NGSS.HS-LS3-1

What is the funtion of tRNA?

• contains codons and carries an amino acid to the ribosome

• carries a sugar to the ribosome

• contains anticodons and carries an amino acid to the ribosome

• carries an amino acid to the nucleus

Use the chart to find to amino acid that corresponds to the codon GGA:

• Alanine

• Glutamic Acid

• Lysine

• Glycine

What type of mutation is shown in the diagram?

• substitution

• insertion

• deletion

• no change

Tags

NGSS.HS-LS3-2

What is the process shown in the diagram?

• transcription

• translation

• mutation

• transformation

Tags

NGSS.HS-LS1-1