DNA Structure

Front

All of the following are nitrogenous bases of DNA, EXCEPT-

• guanine
• adenine
• uracil
• thymine

Back

uracil

Front

A diagram of the DNA strand is provided. The arrow is pointing to which component of the DNA strand?

Options: phosphates, deoxyribose, nitrogenous bases, nucleotide

Back

nitrogenous bases

Front

What determines the traits of an organism?

Back

Order of nucleotides in the DNA molecule

Front

Genes

Back

the basic unit of inheritance

Front

The repeated unit of DNA, made up of a sugar, phosphate, and nitrogenous base, is known as a-

Back

nucleotide

Front

The genomes of an oak tree and a grizzly bear are similar in that-
Options: they share the same number of genes, their DNA is made of the same components, the DNA sequencing is identical, they code for similar adaptations

Back

their DNA is made of the same components

Front

A diagram of the DNA double helix is provided. The DNA components highlighted in the diagram can best be described how?

Back

nitrogen bases held together by a hydrogen bond

Front

Which factor determines the trait a gene will express? Options: Type of gene being sequenced, sequence of nucleotides in the gene, number of times the gene appears, amount of DNA replicated in the gene.

Back

sequence of nucleotides in the gene

Front

The backbone of the DNA molecule is made up of

Back

phosphates and sugars

Front

What are the nucleotides made of?

Back

sugar, phosphate, nitrogen base