NC Biology Essential Standard 3.1

Front

What is a deletion mutation?

Back

A deletion mutation is a type of genetic mutation where one or more nucleotides are removed from the DNA sequence, potentially causing a frameshift in the reading frame.

Front

What is a frameshift mutation?

Back

A frameshift mutation occurs when nucleotides are inserted or deleted from the DNA sequence, altering the reading frame of the genetic code.

Front

What base does adenine pair with in DNA?

Back

Adenine pairs with thymine in DNA.

Front

What are nucleotides?

Back

Nucleotides are the monomers that make up DNA and RNA, consisting of a sugar, a phosphate group, and a nitrogenous base.

Front

Where is DNA located in eukaryotic cells?

Back

In eukaryotic cells, DNA is primarily located in the nucleus.

Front

What is the role of ribosomes in a cell?

Back

Ribosomes are the cellular structures responsible for protein synthesis, translating mRNA into polypeptide chains.

Front

What is the structure of DNA?

Back

DNA is a double helix composed of two strands of nucleotides twisted around each other, held together by base pairs.

Front

What are the four nitrogenous bases in DNA?

Back

The four nitrogenous bases in DNA are adenine, thymine, cytosine, and guanine.

Front

What is the function of mRNA?

Back

mRNA (messenger RNA) carries genetic information from DNA to the ribosome, where it is translated into proteins.

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 instead of thymine.