Genetics - 3.1-3.3 + Nucleotides

Last updated over 5 years ago

17 questions

Genetics - 3.1-3.3 + Nucleotides

Last updated over 5 years ago

17 questions

Question 1

Short wings in fruit flies is:

The genotype

The phenotype

Determined by the genotype

Affected by the environment

All except A the genotype

Question 2

In this image of the human karyotype:

There are 46 pairs of chromosomes

The DNA has already been replicated

None are true.

There are 23 pairs of autosomes

The sister chromatids have separated

Question 3

In a nucleosome, what is the DNA wrapped around?

mRNA

Nucleolus protein.

Polymerase molecules.

Ribosomes.

Histones

Question 4

During meiosis, metaphase I has ____________ amount of genetic material than a normal body cell undergoing no chromosome activity.

a quarter the

half the

the same

quadruple the

double the

Question 5

Sister chromatids begin to move apart in animal cells during:

prophase II

interphase

anaphase II

telophase I

anaphase I

Question 6

An allele is

Another word for a gene

 A variant of a gene

Only comes in pairs

Another word for a locus

A type of chromosome

Question 7

Which of the following statements is false?

Humans have 46 chromosomes

Humans have 23 pairs of chromosomes

Humans have 1 pair of sex chromosomes

Humans have 22 autosomes

Sex chromosomes are considered a homologous pair

Question 8

HL - What kind of meiotic non-disjunction can lead to an XXY son?

Non-disjunction at meiosis I in the formation of sperm

Non-disjunction at meiosis I in the formation of eggs

Non-disjunction at meiosis II of the Y chromosome in the formation of sperm

All except non-disjunction at meiosis II of the Y chromosome in the formation of sperm

Non-disjunction at meiosis II in the formation of eggs.

Question 9

Nucleotides are:

the building-blocks of protein

made of a ribose, a phosphate, and a base and are basic in nature

the building-blocks of the cell

made of a ribose, a phosphate, and a base and are acidic in nature

made of a ribose, a sulfate, and a base

Question 10

10.

Which statement about DNA bases is true?

Thymine and adenine are pyrimidines.

Guanine and cytosine are purines.

None are correct

Guanine and cytosine are pyrimidines.

Adenine and guanine are purines.

Question 11

11.

Which statement about RNA is true?

It has one less oxygen in its ribose.

Thymine is one of its nitrogenous bases.

It is a double-stranded molecule.

None are true.

Uracil is one of its nitrogenous bases.

Question 12

12.

According to Chargaff’s rules for DNA base composition, if a DNA sample contained 10%
guanine, the sample should have:

10% adenine

40% thymine

40% cytosine

90% cytosine

None are true

Question 13

13.

Which of the following could cause DNA mutations

sulfuric acid and UV rays

UV rays and bruises

cuts to the skin and bruises

ionizing radiation and UV rays

ionizing radiation and cuts to the skin

Question 14

14.

Types of mutation include

none are correct

insertion, substitution, multiplication

deletion, insertion, sutraction

division, addition, insertion

substitution, deletion, insertion

Question 15

15.

One half of a DNA strand has the following sequence of bases GCTACGGCGTTATCCCC.
What would appear on the other half?

CGATGCCGCAATAGGGG

CGATTCCGCAATAGGGG

ATAGGAATACCGCTTTT

GCTAAGGCGTTATCCCC

TATCCTTATGGCGAAAA

Question 16

16.

SL/HL - Outline how the process of meiosis can lead to Down's syndrome. 5 marks

Question 17

17.

HL - Describe the consequences of a base substitution mutation with regards to sickle cell anemia. 7 marks

Question 1

Short wings in fruit flies is:

The genotype

The phenotype

Determined by the genotype

Affected by the environment

All except A the genotype

Question 2

In this image of the human karyotype:

There are 46 pairs of chromosomes

The DNA has already been replicated

None are true.

There are 23 pairs of autosomes

The sister chromatids have separated

Question 3

In a nucleosome, what is the DNA wrapped around?

mRNA

Nucleolus protein.

Polymerase molecules.

Ribosomes.

Histones

Question 4

During meiosis, metaphase I has ____________ amount of genetic material than a normal body cell undergoing no chromosome activity.

a quarter the

half the

the same

quadruple the

double the

Question 5

Sister chromatids begin to move apart in animal cells during:

prophase II

interphase

anaphase II

telophase I

anaphase I

Question 6

An allele is

Another word for a gene

 A variant of a gene

Only comes in pairs

Another word for a locus

A type of chromosome

Question 7

Which of the following statements is false?

Humans have 46 chromosomes

Humans have 23 pairs of chromosomes

Humans have 1 pair of sex chromosomes

Humans have 22 autosomes

Sex chromosomes are considered a homologous pair

Question 8

HL - What kind of meiotic non-disjunction can lead to an XXY son?

Non-disjunction at meiosis I in the formation of sperm

Non-disjunction at meiosis I in the formation of eggs

Non-disjunction at meiosis II of the Y chromosome in the formation of sperm

All except non-disjunction at meiosis II of the Y chromosome in the formation of sperm

Non-disjunction at meiosis II in the formation of eggs.

Question 9

Nucleotides are:

the building-blocks of protein

made of a ribose, a phosphate, and a base and are basic in nature

the building-blocks of the cell

made of a ribose, a phosphate, and a base and are acidic in nature

made of a ribose, a sulfate, and a base

Question 10

10.

Which statement about DNA bases is true?

Thymine and adenine are pyrimidines.

Guanine and cytosine are purines.

None are correct

Guanine and cytosine are pyrimidines.

Adenine and guanine are purines.

Question 11

11.

Which statement about RNA is true?

It has one less oxygen in its ribose.

Thymine is one of its nitrogenous bases.

It is a double-stranded molecule.

None are true.

Uracil is one of its nitrogenous bases.

Question 12

12.

According to Chargaff’s rules for DNA base composition, if a DNA sample contained 10%
guanine, the sample should have:

10% adenine

40% thymine

40% cytosine

90% cytosine

None are true

Question 13

13.

Which of the following could cause DNA mutations

sulfuric acid and UV rays

UV rays and bruises

cuts to the skin and bruises

ionizing radiation and UV rays

ionizing radiation and cuts to the skin

Question 14

14.

Types of mutation include

none are correct

insertion, substitution, multiplication

deletion, insertion, sutraction

division, addition, insertion

substitution, deletion, insertion

Question 15

15.

One half of a DNA strand has the following sequence of bases GCTACGGCGTTATCCCC.
What would appear on the other half?

CGATGCCGCAATAGGGG

CGATTCCGCAATAGGGG

ATAGGAATACCGCTTTT

GCTAAGGCGTTATCCCC

TATCCTTATGGCGAAAA

Question 16

16.

SL/HL - Outline how the process of meiosis can lead to Down's syndrome. 5 marks

Question 17

17.

Genetics - 3.1-3.3 + Nucleotides

Genetics - 3.1-3.3 + Nucleotides

Short wings in fruit flies is:

In this image of the human karyotype:

In a nucleosome, what is the DNA wrapped around?

During meiosis, metaphase I has ____________ amount of genetic material than a normal body cell undergoing no chromosome activity.

Sister chromatids begin to move apart in animal cells during:

An allele is

Which of the following statements is false?

HL - What kind of meiotic non-disjunction can lead to an XXY son?

Nucleotides are:

Which statement about DNA bases is true?

Which statement about RNA is true?

According to Chargaff’s rules for DNA base composition, if a DNA sample contained 10%guanine, the sample should have:

Which of the following could cause DNA mutations

Types of mutation include

One half of a DNA strand has the following sequence of bases GCTACGGCGTTATCCCC. What would appear on the other half?

SL/HL - Outline how the process of meiosis can lead to Down's syndrome. 5 marks

HL - Describe the consequences of a base substitution mutation with regards to sickle cell anemia. 7 marks

Short wings in fruit flies is:

In this image of the human karyotype:

In a nucleosome, what is the DNA wrapped around?

During meiosis, metaphase I has ____________ amount of genetic material than a normal body cell undergoing no chromosome activity.

Sister chromatids begin to move apart in animal cells during:

An allele is

Which of the following statements is false?

HL - What kind of meiotic non-disjunction can lead to an XXY son?

Nucleotides are:

Which statement about DNA bases is true?

Which statement about RNA is true?

According to Chargaff’s rules for DNA base composition, if a DNA sample contained 10%guanine, the sample should have:

Which of the following could cause DNA mutations

Types of mutation include

One half of a DNA strand has the following sequence of bases GCTACGGCGTTATCCCC. What would appear on the other half?

SL/HL - Outline how the process of meiosis can lead to Down's syndrome. 5 marks

HL - Describe the consequences of a base substitution mutation with regards to sickle cell anemia. 7 marks

According to Chargaff’s rules for DNA base composition, if a DNA sample contained 10%
guanine, the sample should have:

One half of a DNA strand has the following sequence of bases GCTACGGCGTTATCCCC.
What would appear on the other half?

According to Chargaff’s rules for DNA base composition, if a DNA sample contained 10%
guanine, the sample should have:

One half of a DNA strand has the following sequence of bases GCTACGGCGTTATCCCC.
What would appear on the other half?