GRADED A ACTUAL EXAM Questions and Answers

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GRADED A+ (ACTUAL EXAM ) Questions and Answers (Solved)

What are the monomers (subunits) of DNA?

Answer: nucleotides

What are the 3 part that make up the monomer?

Answer: 5 carbon sugar, phosphate group, nitrogen base

What are the base pairing rules (Chargaff's rules)?

Answer: A & T and C & G

Given the DNA strand- TCACGGTAC. What is the sequence of the comple mentary DNA strand?

Answer: AGTGCCATG

What role do the helicase and DNA polymerase play in DNA replication?-

Answer: Helicase=unwinds and separates the 2 DNA strands

DNA polymerase= moves along each of the template strands, and attaches complementary free-floating nucleotides and also proofreads each new DNA strand.

What are the products of DNA replication?

Answer: It results in two exact copies of the original DNA

molecule. Each new DNA molecule consists of one original ("old") strand and one "new" strand

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What is the purpose of the cell cycle(mitosis)?

Answer: Growth and repair

In the cell cycle (mitosis), how does the number of chromosomes in the parent cells compare to the number of chromosomes in the daughter cells?

Answer: They are the same

How do cancer cells differ from normal cells?

Answer: Cancer cells divide continu ously

Difference between DNA and RNA

Answer: DNA Stores genetic information

• strands

Sugar is deoxyribose Nitrogen bases are A, T, C, G

RNA Helps to make proteins 1 strand Sugar is ribose Nitrogen bases are A, U, C, G

What is a gene?

Answer: A segment of DNA that codes for a protein.

How are genes and proteins related?

Answer: Genes contain the code to make proteins.

Transcription

Answer: DNA instructions "rewritten" in RNA (mRNA)

language Location – Nucleus

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