In Texas Longhorn cattle, coat coloration is an inherited trait. What is the genetic basis of coat-color variation in Texas Longhorn cattle?

Differences in the nucleotide sequences of genes

Differences in the numbers of chromosomes in cells

Differences in the diets of individual cattle

Differences in the environmental conditions of different geographic areas

Which part of a DNA molecule is responsible for the direct coding of specific traits in an organism?

The sequence of nucleotide bases in the DNA molecule.

The number of hydrogen bonds that hold the strands of DNA together.

The number of carbons in the DNA molecule.

The sequences of phosphates along each DNA strand.

Differences in traits such as hair texture are determined by differences in —

the location of sugar groups in DNA

the number of nitrogenous bases in DNA

the molecules attached to the phosphate in DNA

A student used poster board to construct this model of a section of DNA. Which statement describes this model of DNA?

The model is inaccurate because the base pairs are incorrect.

The model is accurate because it contains correctly paired bases.

The model is accurate because it shows each base splitting to form a double helix.

The model is inaccurate because some typical bases in DNA are missing.

Nitrogenous bases are located on both strands of the DNA double helix. What is the significance of the nitrogenous bases?

The order of nitrogenous bases determines the order of amino acids in the proteins synthesized.

The number of adenines and cytosines determines the type of RNA that will be produced.

The amount of thymine and guanine in the DNA molecules determines the length of the genes.

The type of hydrogen bonding between the nitrogenous bases determines which amino acid will be added to the peptide chain.

A segment of DNA is represented in the illustration. How is information for a specific protein carried on the DNA molecule?

In the double-helix shape of the condensed chromosome

In the ratio of adenines to thymines

As a pattern of phosphates and sugars

The sequence of nitrogenous bases in DNA varies widely. The sequence of the bases in DNA is most important for which of the following?

Providing the instructions for the traits of an organism

Preventing mutations from occurring during DNA replication

Allowing the DNA to have the shape necessary for replication

Helping form the sugar-phosphate backbone of DNA molecules

In 1952 Rosalind Franklin took the x-ray photograph shown on the left, which gave the world its first look at DNA. By studying this photograph, scientists gained knowledge about the-

role of DNA in protein synthesis

mutation of nucleotide sequences in DNA

sequence of DNA that makes up the human genome

A model of a DNA molecule is shown below. The arrow indicates —

the hydrogen bond between complementary nucleotides

the bond between adjacent phosphate and deoxyribose molecules

the junction of introns and exons in the sense strand of DNA

the junction of a codon and a DNA triplet

How does DNA in cells determine an organism's complex traits?

A DNA contains codes for proteins, which are necessary for the growth and functioning of an organism.

DNA produces the energy an organism needs in order to grow.

DNA folds into the nucleus of each of the cells of an organism.

DNA separates into long single strands that make up each part of an organism.

Components of DNA 7A

Quiz

•

Biology

•

9th Grade

•

Practice Problem

•

Hard

•

NGSS

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

+1

Standards-aligned

SHEEZA ALI

Used 2+ times

FREE Resource

23 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Humans have thousands of genes that combine in different ways to help create unique individuals.
Where is the genetic code primarily located?

A Ribose sugars in RNA

Phosphates in DNA

Nucleotides in DNA

Exons in RNA

2.

LABELLING QUESTION

1 min • 1 pt

Identify the components of DNA.
Move the correct answer to each box. Not all answers will be used.

a

b

c

Nitrogenous base

Sugar base sugar

Phosphate

Nucleotide

Deoxyribose Sugar

Base Pair

Ribose Sugar

Tags

NGSS.HS-LS1-1

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Albumin is a protein that is secreted by liver cells and transported to the bloodstream. What factor most directly determines the amino acids that are combined to create albumin?

The temperature of the cell when translation is taking place

The number of chromosomes in a cell

The sequence of nucleotides in DNA

The amount of energy that is available in the cell

Tags

NGSS.HS-LS1-1

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The base sequence of a segment of DNA is shown.
Which base sequence correctly completes DNA Strand 2?

A A T A C G T

B G C G TAC

C G C A T G

T A T G C A

Tags

NGSS.HS-LS1-1

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What components make up the backbone of a DNA molecule?

Purines and deoxyribose

Pyrimidines and purines

Deoxyribose and phosphate groups

Phosphate groups and pyrimidines

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A model of DNA is shown.
Which part of the DNA model is most directly associated with the
coding of genetic information?

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A segment of DNA is shown in the diagram.
Which of these identifies the part of the DNA segment labeled X?

Nucleotide

Phosphate group

Hydrogen bond

Deoxyribose

Tags

NGSS.HS-LS1-1

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Components of DNA 7A

23 questions

Humans have thousands of genes that combine in different ways to help create unique individuals.
Where is the genetic code primarily located?

Identify the components of DNA.
Move the correct answer to each box. Not all answers will be used.

Albumin is a protein that is secreted by liver cells and transported to the bloodstream. What factor most directly determines the amino acids that are combined to create albumin?

The base sequence of a segment of DNA is shown.
Which base sequence correctly completes DNA Strand 2?

What components make up the backbone of a DNA molecule?

A model of DNA is shown.
Which part of the DNA model is most directly associated with the
coding of genetic information?

A segment of DNA is shown in the diagram.
Which of these identifies the part of the DNA segment labeled X?

In Texas Longhorn cattle, coat coloration is an inherited trait. What is the genetic basis of
coat-color variation in Texas Longhorn cattle?

Eight components present in nucleic acids are listed in the box.
Which components bond with adenine in a section of double-stranded DNA?

A segment of a DNA strand is shown.
3' AGGTCAGGT 5'
Which of these is the correct complementary DNA strand for the segment shown?

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Components of DNA 7A

23 questions

Humans have thousands of genes that combine in different ways to help create unique individuals.Where is the genetic code primarily located?

Identify the components of DNA.Move the correct answer to each box. Not all answers will be used.

Albumin is a protein that is secreted by liver cells and transported to the bloodstream. What factor most directly determines the amino acids that are combined to create albumin?

The base sequence of a segment of DNA is shown.Which base sequence correctly completes DNA Strand 2?

What components make up the backbone of a DNA molecule?

A model of DNA is shown. Which part of the DNA model is most directly associated with thecoding of genetic information?

A segment of DNA is shown in the diagram.Which of these identifies the part of the DNA segment labeled X?

In Texas Longhorn cattle, coat coloration is an inherited trait. What is the genetic basis ofcoat-color variation in Texas Longhorn cattle?

Eight components present in nucleic acids are listed in the box.Which components bond with adenine in a section of double-stranded DNA?

A segment of a DNA strand is shown.3' AGGTCAGGT 5'Which of these is the correct complementary DNA strand for the segment shown?

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Biology

Humans have thousands of genes that combine in different ways to help create unique individuals.
Where is the genetic code primarily located?

Identify the components of DNA.
Move the correct answer to each box. Not all answers will be used.

The base sequence of a segment of DNA is shown.
Which base sequence correctly completes DNA Strand 2?

A model of DNA is shown.
Which part of the DNA model is most directly associated with the
coding of genetic information?

A segment of DNA is shown in the diagram.
Which of these identifies the part of the DNA segment labeled X?

In Texas Longhorn cattle, coat coloration is an inherited trait. What is the genetic basis of
coat-color variation in Texas Longhorn cattle?

Eight components present in nucleic acids are listed in the box.
Which components bond with adenine in a section of double-stranded DNA?

A segment of a DNA strand is shown.
3' AGGTCAGGT 5'
Which of these is the correct complementary DNA strand for the segment shown?