Question 1

What is the outcome of synapsis,a significant event in meiosis?

Accepted Answer

A) chiasma segregation 
B) dyad formation 
C) side- by- side alignment of nonhomologous chromosomes 
D) monad movement to opposite poles 
E) side- by- side alignment of homologous chromosomes 
A) chiasma segregation 
B) dyad formation 
C) side- by- side alignment of nonhomologous chromosomes 
D) monad movement to opposite poles 
E) side- by- side alignment of homologous chromosomes

Question 2

Living organisms are categorized into two major groups based on the presence or absence of a nucleus.What group is defined by the presence of a nucleus?

Accepted Answer

A) prokaryotic organism 
B) mitochondrial organism 
C) virus 
D) eukaryotic organism 
E) bacterium 
A) prokaryotic organism 
B) mitochondrial organism 
C) virus 
D) eukaryotic organism 
E) bacterium

Question 3

Which of the following is diploid?

Accepted Answer

A) zygote 
B) egg 
C) gametophyte 
D) sperm 
E) megaspore 
A) zygote 
B) egg 
C) gametophyte 
D) sperm 
E) megaspore

Question 4

How many haploid sets of chromosomes are present in an individual cell that is pentaploid 5n ?

Accepted Answer

A) 5 
B) 3 
C) 4 
D) 2 
E) It is impossible to tell with the information given. 
A) 5 
B) 3 
C) 4 
D) 2 
E) It is impossible to tell with the information given.

Question 5

During the transition from interphase to metaphase chromosome,the DNA undergoes how much compaction?

Accepted Answer

A) 500 fold 
B) 50 fold 
C) 2 fold 
D) 5000 fold 
E) 10 fold 
A) 500 fold 
B) 50 fold 
C) 2 fold 
D) 5000 fold 
E) 10 fold

Question 6

List,in order of appearance,all the cell types expected to be formed during oogenesis.

Accepted Answer

A) oogonium,primary oocyte,secondary oocyte and first polar body,ootid and second polar body 
B) primary oocyte,secondary oocyte and first polar body,ootid,second polar body,oogonium 
C) primary oocyte,secondary oocyte and first polar body,oogonium,second polar body and ootid 
D) primary oocyte,secondary oocyte and first polar body,second polar body,ootid,oogonium 
E) oogonium,primary oocyte,second polar body and ootid,secondary oocyte and first polar body 
A) oogonium,primary oocyte,secondary oocyte and first polar body,ootid and second polar body 
B) primary oocyte,secondary oocyte and first polar body,ootid,second polar body,oogonium 
C) primary oocyte,secondary oocyte and first polar body,oogonium,second polar body and ootid 
D) primary oocyte,secondary oocyte and first polar body,second polar body,ootid,oogonium 
E) oogonium,primary oocyte,second polar body and ootid,secondary oocyte and first polar body

Question 7

Name two cellular organelles,each containing genetic material,which are involved in either photosynthesis or respiration.

Accepted Answer

A) chloroplast and endoplasmic reticulum 
B) rough and smooth endoplasmic reticula 
C) lysosome and chloroplast 
D) chloroplasts and mitochondria 
E) peroxisomes and mitochondria 
A) chloroplast and endoplasmic reticulum 
B) rough and smooth endoplasmic reticula 
C) lysosome and chloroplast 
D) chloroplasts and mitochondria 
E) peroxisomes and mitochondria

Question 8

Normal diploid somatic body cells of the mosquito Culex pipiens contain six chromosomes.Assuming that all nuclear DNA is restricted to chromosomes and that the amount of nuclear DNA essentially doubles during the S phase of interphase,how much nuclear DNA would be present in metaphase I of mitosis? Note: Assume that the G1 nucleus of a mosquito cell contains 3.0 × 10- 12 grams of DNA.

Accepted Answer

A) 12 × 10-12 g 
B) 1.5 × 10-12 g 
C) 0.75 × 10-12 g 
D) 3.0 × 10-12 g 
E) 6.0 × 10-12 g 
A) 12 × 10-12 g 
B) 1.5 × 10-12 g 
C) 0.75 × 10-12 g 
D) 3.0 × 10-12 g 
E) 6.0 × 10-12 g

Question 9

Which of the follow could occur if a cell cycle checkpoint was missed?

Accepted Answer

A) The cell cycle would be arrested until the error could be corrected. 
B) An unreplicated chromosome could be put through mitosis. 
C) The spindle apparatus would not form. 
D) Cohesin could not function correctly. 
E) DNA would mutate during G2. 
A) The cell cycle would be arrested until the error could be corrected. 
B) An unreplicated chromosome could be put through mitosis. 
C) The spindle apparatus would not form. 
D) Cohesin could not function correctly. 
E) DNA would mutate during G2.

Question 10

During meiosis,chromosome number reduction takes place in_______ .

Accepted Answer

A) anaphase I 
B) prophase I 
C) telophase II 
D) anaphase II 
E) metaphase I 
A) anaphase I 
B) prophase I 
C) telophase II 
D) anaphase II 
E) metaphase I

Question 11

The nucleolus organizer region NOR)is responsible for production of what type of cell structure?

Accepted Answer

A) endoplasmic reticulum 
B) nucleolus 
C) mitochondria 
D) chromatids 
E) ribosome 
A) endoplasmic reticulum 
B) nucleolus 
C) mitochondria 
D) chromatids 
E) ribosome

Question 12

An organism with a haploid number of 10 will produce_______ combinations of chromosomes at the end of meiosis.

Accepted Answer

A) 32 
B) 1024 
C) 10 
D) 10,000 
E) 100 
A) 32 
B) 1024 
C) 10 
D) 10,000 
E) 100

Question 13

Which if the following is not a source of genetic variation in meiosis?

Accepted Answer

A) polar body formation 
B) crossing over 
C) tetrad formation 
D) law of independent assortment 
E) the random lining up of chromosomes on the metaphase plate 
A) polar body formation 
B) crossing over 
C) tetrad formation 
D) law of independent assortment 
E) the random lining up of chromosomes on the metaphase plate

Question 14

What is the name of the membranous structure that compartmentalizes the cytoplasm of eukaryotic organisms?

Accepted Answer

A) mitochondria 
B) ribosome 
C) nucleoid 
D) endoplasmic reticulum 
E) cytosol 
A) mitochondria 
B) ribosome 
C) nucleoid 
D) endoplasmic reticulum 
E) cytosol

Question 15

How many haploid sets of chromosomes are present in a diploid individual cell with a chromosome number of 32?
A)16
B)32
C)2
D)8
E)1

Accepted Answer

The answer of How many haploid sets of chromosomes are...

Question 16

You may have heard through various media of an animal alleged to be the hybrid of a rabbit and a cat.Given that the cat Felis domesticus)has a diploid chromosome number of 38 and a rabbit Oryctolagus cuniculus)has a diploid chromosome number of 44,what would be the expected chromosome number in the somatic tissues of this alleged hybrid?

Accepted Answer

A) 40 
B) 38 
C) 41 
D) 82 
E) 44 
A) 40 
B) 38 
C) 41 
D) 82 
E) 44

Question 17

If a typical G1 nucleus contains 2C two complements of DNA,a gamete that is haploid n contains _______of DNA.

Accepted Answer

A) 2C 
B) 0.5C 
C) 4C 
D) 1C 
E) 3C 
A) 2C 
B) 0.5C 
C) 4C 
D) 1C 
E) 3C

Question 18

In a healthy female,how many secondary oocytes would be expected to form from 100 primary oocytes? How many first polar bodies would be expected from 100 primary oocytes?

Accepted Answer

A) 100; 50 
B) 200; 50 
C) 50; 50 
D) 100; 100 
E) 200; 300 
A) 100; 50 
B) 200; 50 
C) 50; 50 
D) 100; 100 
E) 200; 300

Question 19

Which term describes meiosis I?

Accepted Answer

A) reducational 
B) confrontational 
C) equinational 
D) multiplicative 
E) middling 
A) reducational 
B) confrontational 
C) equinational 
D) multiplicative 
E) middling

Question 20

A bivalent at prophase I contains _______chromatids.

Accepted Answer

A) four 
B) three 
C) two 
D) one 
E) eight 
A) four 
B) three 
C) two 
D) one 
E) eight

Exam 2: Mitosis and Meiosis

What is the outcome of synapsis,a significant event in meiosis?

Living organisms are categorized into two major groups based on the presence or absence of a nucleus.What group is defined by the presence of a nucleus?

Which of the following is diploid?

How many haploid sets of chromosomes are present in an individual cell that is pentaploid 5n ?

During the transition from interphase to metaphase chromosome,the DNA undergoes how much compaction?

List,in order of appearance,all the cell types expected to be formed during oogenesis.

Name two cellular organelles,each containing genetic material,which are involved in either photosynthesis or respiration.

Which of the follow could occur if a cell cycle checkpoint was missed?

During meiosis,chromosome number reduction takes place in_______ .

The nucleolus organizer region NOR)is responsible for production of what type of cell structure?

An organism with a haploid number of 10 will produce_______ combinations of chromosomes at the end of meiosis.

Which if the following is not a source of genetic variation in meiosis?

What is the name of the membranous structure that compartmentalizes the cytoplasm of eukaryotic organisms?

How many haploid sets of chromosomes are present in a diploid individual cell with a chromosome number of 32? A)16 B)32 C)2 D)8 E)1

If a typical G1 nucleus contains 2C two complements of DNA,a gamete that is haploid n contains _______of DNA.

In a healthy female,how many secondary oocytes would be expected to form from 100 primary oocytes? How many first polar bodies would be expected from 100 primary oocytes?

Which term describes meiosis I?

A bivalent at prophase I contains _______chromatids.

Introduction to Genetics

Mendelian Genetics

Extensions of Mendelian Genetics

Chromosome Mapping in Eukaryotes

Genetic Analysis and Mapping in Bacteria and Bacteriophages

Sex Determination and Sex Chromosomes

Chromosome Mutations: Variation in Number and Arrangement

Extranuclear Inheritance

DNA Structure and Analysis

DNA Replication and Recombination

DNA Organization in Chromosomes

The Genetic Code and Transcription

Translation and Proteins

Gene Mutation,dna Repair,and Transposition

Regulation of Gene Expression in Bacteria

Transcriptional Regulation in Eukaryotes

Post-Transcriptional Regulation in Eukaryotes

Epigenetic Regulation in Eukaryotes

Recombinant Dna Technology

Genomic Analysis

Applications of Genetic Engineering and Biotechnology

Developmental Genetics

Cancer Genetics

Quantitative Genetics and Multifactorial Traits

Population and Evolutionary Genetics

CRISPR and Genomic Editing

DNA Forensics

Genomics and Precision Medicine

Genetically Modified Foods

Gene Therapy

Advances in Neurogenetics: The Study of Huntington Disease

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