STAAR Review Biology Category 2

Front

What is CRISPR-Cas9?

Back

CRISPR-Cas9 is a genetic modification technique that allows scientists to edit parts of the genome by adding, removing, or modifying sections of DNA.

Front

How can scientists control gene expression using CRISPR-Cas9?

Back

By activating or deactivating specific genes.

Front

What is the complementary base sequence for T-C-G-A-A-T in DNA?

Back

A-G-C-T-T-A.

Front

What does the sequence of bases in DNA determine?

Back

It determines the characteristics that will be inherited.

Front

What amino acid does the codon AGU code for?

Back

Serine (Ser).

Front

What is the sugar found in DNA?

Back

Deoxyribose.

Front

What is the sugar found in RNA?

Back

Ribose.

Front

What is the difference between DNA and RNA regarding their sugars?

Back

DNA has a deoxyribose sugar while RNA has a ribose sugar.

Front

What are nucleotides?

Back

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

Front

What are the four nitrogenous bases in DNA?

Back

Adenine (A), Thymine (T), Cytosine (C), Guanine (G).