BIO. 1ST SEM REV-Cell Cycle and DNA Replication Quiz

Which statement does not describe cell cycle checkpoints?

• A. Normal checkpoints assess damage to DNA.

• B. Faulty checkpoints may lead to abnormal cell growth.

• C. Cell checkpoints can fail in mitosis and meiosis.

• D. Defective checkpoints result in the death of the cell.

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When changes occur in a cell’s DNA, it leads to changes in the synthesis of —

• F. Carbohydrates

• G. Cytoplasm

• H. Lipids

• J. Proteins

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Which of the following correctly identifies the proper nitrogen base pairing in DNA replication?

Which of the following represents the correct base pairing in DNA?

• A:T, G:C

• T:C, G:A

• T:U, C:G

• A:U, G:C

The following represents a small section of one strand of DNA: 5’ TACATGTGGCCACT 3’. How should the complementary strand of DNA be represented?

• 5’ TACATGTGGCCACT 3’

• 3’ ATGTACCACCGTGA 5’

• 5’ UTGTUCCCGGTGU 3’

• 3’ AUGUAGAGGCCUGA 5’

A linear code of 3 sequential bases on one side of a DNA molecule is a —

• base pair

• codon

• amino acid

In 1952, Rosalind Franklin took an X-ray photograph revealing the structure of DNA. James Watson and Francis Crick followed up on this discovery in 1953. They discovered that the molecule has a shape specific to just that molecule. That shape can best be described as —

• a single strand containing 4 different bases that vary depending on the type of DNA

• ladder shaped, containing 5 nitrogenous bases that bond to one another

• triple stranded, with bonds between each strand holding the three strands together

• double stranded and twisted, with a base bonded to another base holding the strands together

Of the following bases, which one is not found in DNA?

What determines the traits of an organism?

• Relation of AT to CG base pairs

• Number of nitrogen bases in RNA

• Presence of ribose or deoxyribose in a nucleic acid

• Sequence of nitrogen bases in DNA

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What is the amino acid sequence that will be translated from the mRNA sequence 5' UGC UAC AGA ACC 3'?

• Threonine - Isoleucine - Serine - Tryptophan

• Cysteine - Tyrosine - Arginine - Threonine

• Serine - Methionine - Tyrosine - Tryptophan

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