Ch 15 DNA Structure and Function: DNA Understanding Contributions

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What is the primary difference between haploid and diploid cells?

Haploid cells have two copies of each unique chromosome, while diploid cells have one copy of every chromosome

Haploid cells are found in prokaryotes, while diploid cells are found in eukaryotes

Haploid cells have one copy of each unique chromosome, while diploid cells have two copies of every chromosome (correct)

Haploid cells have no chromosomes, while diploid cells have some chromosomes

During which stage of the cell cycle does DNA replication occur?

G1 phase

G2 phase

M phase

S phase (correct)

What is the primary function of mitotic spindles?

To synthesize proteins during the G1 phase

To attach to chromosomes and move them during mitosis (correct)

To form the cleavage furrow during cytokinesis

To replicate DNA during the S phase

What is the main difference between asexual and sexual reproduction?

Asexual reproduction involves one organism, while sexual reproduction involves two organisms Signup and view all the answers

What is the ploidy of human sex cells?

n Signup and view all the answers

During which stage of mitosis do sister chromatids separate?

Anaphase Signup and view all the answers

What is the general discovery attributed to Chargaff's research on the chemical makeup of DNA?

Equal amounts of purines and pyrimidines in DNA Signup and view all the answers

Which enzyme is responsible for unwrapping double-stranded DNA during DNA replication?

DNA Helicase Signup and view all the answers

In DNA replication, which strand is made in pieces known as Okazaki fragments?

Lagging Strand Signup and view all the answers

What does the 5' end of DNA refer to?

Front end Signup and view all the answers

What was the general discovery attributed to Franklin's research in DNA Structure and X-Ray Crystallography?

The double helix structure of DNA Signup and view all the answers

What do Purines and Pyrimidines refer to in DNA?

Specific nucleotides in DNA (e.g., A, T, G, C) Signup and view all the answers

Ch 15 DNA Structure and Function: DNA Understanding Contributions

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