G10 Science Lesson 3.3 DNA Structure

Multiple Select

Who are the two scientists credited for the discovery of the DNA?

• James Watson

• Walter Siegfried Albrecht

• Francis Crick

• Rosalind Franklin

Multiple Choice

What is a nucleotide?

• Nucleotides are the building blocks of DNA.

• Nucleotides control the cell.

• Nucleotides are the rise and fall of sea level.

• Nucleotides are the building blocks of matter.

Multiple Choice

Which of the following is not included in the DNA according to Phoebus Levene?

• Cytosine

• Uracil

• Thymine

• Guanine

• Adenine

Multiple Choice

According to Chargaff's experiment, what pairs with adenine?

• Cytosine

• Uracil

• Thymine

• Guanine

• Adenine

Multiple Choice

According to Chargaff's experiment, what pairs with guanine?

• Cytosine

• Uracil

• Thymine

• Guanine

• Adenine

Multiple Choice

What did Rosalind Franklin used to study the DNA's structure?

• telescope

• scanning electron microscope

• x-ray crystallography

• radiation

Multiple Choice

What do you call the famous photograph taken by Rosalind Franklin that helped the others discover the DNA's structure?

• DNA Photo

• Photo Z

• Photon

• Photo 51

Multiple Choice

What makes up the DNA's backbone?

• helix

• double helix

• triple helix

• sinusoidal

Multiple Choice

What is the DNA's structure?

• helix

• double helix

• triple helix

• sinusoidal

Multiple Choice

What makes up the DNA's backbone?

• sugars

• phosphates

• alternating sugar and phosphates

• two sugars and three phosphates

Multiple Choice

What do you call the ladder steps-like structures of the DNA?

• nucleotides

• nitrogen

• nitrogenous base pairs

Multiple Choice

What connects the nitrogenous base pairs together?

• helium bonds

• hydrogen bonds

• nitrogen bonds

Multiple Choice

How many hydrogen bonds bind cytosine and guanine?

• 2

• 3

• 4

Multiple Choice

How many hydrogen bonds bind adenine and thymine?

• 2

• 3

• 4

Multiple Choice

The DNA turns?

• clockwise

• counterclockwise

• The DNA does not turn.

Multiple Choice

One Angstrom unit is equivalent to?

• 1 x 10 ^ 10 meters

• 1 x 10 ^ -10 meters

• 1 x 10 ^ -5 meters

Multiple Choice

The backbones of the DNA is in _________ directions called antiparallel chains while the nitrogenous bases are flat.

• opposing

• similar

• reversed

Multiple Choice

How far apart are the nitrogenous bases?

• 1.43 Å

• 2.29 Å

• 3.4 Å

Multiple Choice

How many nitrogenous bases are there every 360-degrees turn of the DNA?

• 3

• 5

• 8

• 10

Multiple Choice

What is the diameter of the double-helix?

• 10 Å

• 20 Å

• 30 Å

• 40 Å

Multiple Choice

What type of replication occurs in DNA?

• conservative

• semiconservative

• dispersive

Multiple Choice

What makes up chromosomes?

• nucleic acids

• genes

• nitrogenous base

• sugar and phosphate

Multiple Choice

A single body cell contains how many genes?

• 20k to 25k

• 30k to 35k

• 40k to 45k

• 100k to 120k

Multiple Choice

Which of the following is not determined by the genes?

• how an individual functions

• individual's course in college

• how a person looks

Multiple Choice

Which of the following is not part of a nucleotide?

• five-carbon sugar

• nitrogenous base

• phosphate group

• none of the above

Multiple Select

Which of the following is/are double-ringed purines?

• cytosine

• thymine

• guanine

• adenine

• uracil

Multiple Select

Which of the following is/are single-ringed pyrimidine/s?

• cytosine

• thymine

• guanine

• adenine

• uracil

Multiple Choice

Mostly found in the cytoplasm but also found in nucleus

• DNA

• RNA

Multiple Choice

Blueprint of biological guidelines

• DNA

• RNA

Multiple Choice

Adenine

Uracil

Thymine

Guanine

• DNA

• RNA

Multiple Choice

C₅H₁₀O₄

• DNA

• RNA

Multiple Choice

What is the correct sequence according to the central dogma of molecular genetics?

• replication - transcription - translation

• transcription - translation - replication

• translation - replication - transcription

Multiple Choice

What is the correct sequence according to the central dogma of molecular genetics?

• DNA - mRNA - protein

• protein - mRNA - DNA

• mRNA - DNA - protein

Multiple Choice

What is the correct sequence of replication?

• unwinding - joining - base pairing

• joining - base pairing - unwinding

• unwinding - base pairing - joining

Multiple Choice

What is the function of the DNA helicase?

• break the hydrogen bonds between the nucleotides

• addition of new nucleotides to the parent strands

• addition of more complementary base pairs and proofreading

• seals any breaks in the DNA strand and repairs damages strand

Multiple Choice

What is the function of the DNA polymerase?

• break the hydrogen bonds between the nucleotides

• addition of new nucleotides to the parent strands

• addition of more complementary base pairs and proofreading

• seals any breaks in the DNA strand and repairs damages strand

Multiple Choice

What is the function of the DNA primase?

• break the hydrogen bonds between the nucleotides

• addition of new nucleotides to the parent strands

• addition of more complementary base pairs and proofreading

• seals any breaks in the DNA strand and repairs damages strand

Multiple Choice

What is the function of the DNA ligase?

• break the hydrogen bonds between the nucleotides

• addition of new nucleotides to the parent strands

• addition of more complementary base pairs and proofreading

• seals any breaks in the DNA strand and repairs damages strand

Multiple Choice

Which of the following is not a type of RNA?

• messenger RNA

• ribosomal RNA

• transfer RNA

• none of the above

Multiple Choice

What will pair up with adenine in mRNA?

• uracil

• thymine

• guanine

• cytosine

Multiple Choice

What enzyme ensures that the right complementary strand is transcribed?

• helicase

• primase

• polymerase

• ligase

Multiple Choice

Translation leads to the formation of?

• ribosomal RNA

• proteins

• amino acids

• messenger RNA

Multiple Choice

How many nitrogenous bases in the mRNA are needed to form a codon?

• 1

• 2

• 3

• 4

Multiple Choice

What do you call the bases found in tRNA?

• DNA

• protein

• amino acid

• anticodon

Multiple Choice

How many amino acids are produced in humans?

• 23

• 46

• 40

• 20

Multiple Choice

What joins the amino acids together?

• hydrogen bond

• peptide bonds

• nitrogen bonds