4th Study Quiz

During the cell cycle, proteins called cyclins bind to enzymes that send signals for the cell to progress through stages of cell replication. At the end of this cycle, the cyclins degrade to prevent further signaling for the cell to divide. Uncontrolled production of cyclins will most likely result in —

• the formation of tumors

• the immediate death of the cell

• the transfer of cyclins to other cells

• the formation of haploid cells

Tags

NGSS.HS-LS1-4

When cells lose their ability to regulate the cell cycle, they can divide at an accelerated rate and form a mass of cells. This mass of cells is referred to as —

• a tumor

• an embryo

• a gland

• an organ

Tags

NGSS.HS-LS1-4

A patient came to the doctor’s office for an annual check-up. Given that cancer cells do not respond to signals that normally regulate the growth of most cells, which of the following test result(s) may suggest the patient has cancer?

• I, II

• II, III

• I, III

• II, IV

Tags

NGSS.HS-LS1-4

NGSS.HS-LS3-2

What are the three parts that make up a nucleotide in DNA molecule.

• Amino acid, ribose sugar, phosphate group
• Phosphate group, deoxyribose sugar, nitrogenous base
• Nitrogenous base, glucose, phosphate group
• Deoxyribose sugar, fatty acid, nitrogenous base

What are the four nitrogen bases in DNA?

• Adenine, Thymine, Sugar, Cytosine

• Adenine, Uracil, Cytosine, Guanine

• Adenine, Thymine, Cytosine, Guanine
• Adenine, Thymine, Cytosine, Uracil

What components make up the backbone of a DNA molecule? Select TWO correct answers.

• Phosphate group

• Deoxyribose sugar

• Nitrogenous base

• Hydrogen bond

A segment of a DNA strand is shown. Fill in the blanks to complete the complementary DNA strand for the segment shown.

3’ AGGTCAGGT 5’

5' TC ______ A 3’

What components make up the backbone of a DNA molecule?

• Purines and deoxyribose

• Pyrimidines and purines

• Deoxyribose and phosphate groups

• Phosphate group and pyrimidines

Which of these identifies the part of the DNA segment labeled X?

• Nucleotide

• Phosphate group

• Hydrogen bond

• Deoxyribose

Which components bond with adenine in a section of double-stranded DNA?

• 1, 3, 5, and 6 only

• 3 and 5 only

• 2 and 4 only

• 3, 4, 7, and 8 only