What is the significance of the sequence (order) of the Nitrogen Bases in DNA?

The order of the Nitrogen Bases determines the traits that an organism will possess (have).

The order of the Nitrogen Bases determines the number of chromosomes present in an organism.

The order of the Nitrogen Bases determines the gender of an organism.

The order of the Nitrogen Bases determines whether an organism is abiotic biotic.

Why is DNA important?

it serves as the blueprint for traits of all living things

it is very small and very complicated

because we eat it every day for energy

Assume that you have straight hair and your sibling has curly hair. What accounts for this difference?

Your sequence of nitrogen bases is different than your sibling.

You have DNA and your sibling does not.

Your sibling has a genetic mutation.

Two people each have a gene that codes for a form of hemoglobin. Person #1 has a gene that encodes for normal hemoglobin, whereas Person #2 has a gene that encodes a mutated form of hemoglobin Sickle Cell Anemia. The difference between these two genes is due to

the change of sugar in the molecule

the addition of a nitrogen base

the broken covalent bonds between the phosphate and sugar

Which is the correct representation of a nucleotide in DNA?

deoxyribose sugar, phosphate group, thymine

deoxyribose sugar, phosphate group, uracil

ribose sugar, phosphate group, thymine

ribose sugar, phosphate group, uracil

Many enzymes are involved in DNA replication. Which is the correct order of enzymes involved in DNA replication from beginning to end?

Helicase, RNA primase, DNA polymerase, Ligase

Helicase, DNA primase, DNA polymerase, Ligase

RNA primase, Helicase, DNA polymerase, Ligase

DNA primase, Helicase, RNA polymerase, Ligase

Which is the role of DNA polymerase?

Builds new strands by bringing in new nucleotide bases.

Unwinds the original DNA strand

Lays down RNA primer for new nucleotide bases.

Remove Okazaki fragments for new nucleotides.

Which is the last step of DNA replication?

Ligase knits together fragments on lagging strand

RNA Helicase unwinds original DNA strand

RNA polymerase builds new strands by bring in new nucleotide bases.

DNA Primase lays down RNA primer for new nucleotide bases.

The process of DNA replication is called semi conservative because it results in

two identical molecules, each with 1 original strand and one new.

two exact copies with new strands

Two DNA molecules. One original molecule and one with two new strands

DNA structure & replication

Quiz

•

Biology

•

9th Grade

•

Practice Problem

•

Medium

•

NGSS

HS-LS1-1, HS-LS3-2, HS-PS1-2

+1

Standards-aligned

Tien Ly

Used 32+ times

FREE Resource

Tags

NGSS.HS-LS1-1

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the three components of a nucleotide?

sugar, hydrogen, nitrogen base

sugar, phosphate, nitrogen base

sugar, oxygen, nitrogen base

sugar, phosphate, protein

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Name this structure

double helix

twisted ladder

nucleotide

hydrogen bond

Tags

NGSS.HS-LS1-1

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DNA structure & replication

25 questions

Q.
What does DNA stand for?

What makes up the rungs (steps) of a DNA ladder?

What makes up the SIDES/backbones of a DNA ladder?

Which of the following best describes a DNA molecule?

Nitrogenous bases are joined by which type of bond?

What are the three components of a nucleotide?

Name this structure

Cytosine always pairs with

Adenine bonds with ______________.

What is the complement to the DNA strand below: 5'-ATGCCAT-3'

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DNA structure & replication

25 questions

Q. What does DNA stand for?

What makes up the rungs (steps) of a DNA ladder?

What makes up the SIDES/backbones of a DNA ladder?

Which of the following best describes a DNA molecule?

Nitrogenous bases are joined by which type of bond?

What are the three components of a nucleotide?

Name this structure

Cytosine always pairs with

Adenine bonds with ______________.

What is the complement to the DNA strand below: 5'-ATGCCAT-3'

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Biology

Q.
What does DNA stand for?