L8- Lessons 1,2&DNA Flashcard

Front

What is a trait?

Back

A trait is a characteristic or feature of an organism, such as eye color or height.

Front

What is a variation?

Back

A variation is a difference in a trait among individuals of the same species.

Front

What are nucleotides?

Back

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

Front

What is the structure of DNA?

Back

DNA is structured as a double helix, composed of two strands of nucleotides.

Front

What is a chromosome?

Back

A chromosome is a tightly coiled structure of DNA and proteins found in the nucleus of a cell.

Front

What is the function of deoxyribose sugars in DNA?

Back

Deoxyribose sugars form the backbone of the DNA molecule, linking nucleotides together.

Front

What are phosphates in DNA?

Back

Phosphates are part of the backbone of DNA, connecting the deoxyribose sugars of adjacent nucleotides.

Front

What are nitrogen bases?

Back

Nitrogen bases are the components of nucleotides that pair together to form the rungs of the DNA ladder (A, T, C, G).

Front

What is heredity?

Back

Heredity is the passing of traits from parents to offspring through genes.

Front

What is the role of DNA in living organisms?

Back

DNA carries genetic information that determines the traits and functions of living organisms.