AP Bio - 1st Semester Exam 24 - 25 - 18 Dec 24

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Phosphate group

Back

A molecular group consisting of a central phosphorus atom bound to four oxygen atoms.

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Leading strand

Back

The strand that is synthesized continuously in the 5' to 3' direction, in the direction of the replication fork.

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Telomere

Back

The DNA at the end of linear chromosomes.

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Replication fork

Back

The area where the DNA double helix is unwound to allow for replication.

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DNA polymerase

Back

An enzyme that synthesizes new DNA strands by adding nucleotides complementary to the template strand.

Front

Okazaki fragments

Back

Short segments of DNA synthesized on the lagging strand during DNA replication.

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Lagging strand

Back

The strand that is synthesized discontinuously in short segments away from the replication fork.

Front

Antiparallel strands

Back

The orientation of the two strands of DNA, where one runs 5' to 3' and the other runs 3' to 5'.

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Semi-conservative replication

Back

The method of DNA replication where each new DNA molecule consists of one old strand and one new strand.

Front

Nucleotide

Back

The basic building block of DNA and RNA, consisting of a sugar, a phosphate group, and a nitrogenous base.