BIO 322 Exam 3- Questions with Complete
Solutions
During which phase DNA synthesis occurs and the replicated chromosomes are joined at
their centromeres?
S phase
Cell divides into two daughter cell during _____ stage of the cell cycle
cytokinesis
A person who has two identical alleles for a particular gene is _____ for that gene.
homozygous
The major macromolecules that make up cells are
carbohydrates, proteins, lipids, and nucleic acids.
The order of events in the cell cycle is
G1 to S to G2 to mitosis.
Sperm and egg cells are haploid, meaning that they have one copy of the human genome.
true
Sperm and egg cells are diploid, meaning that they have two copies of the human genome.
false
Stem cells are haploid, meaning that they have one copy of the human genome.
false
,Somatic cells are haploid, meaning that they have one copy of the human genome.
false
What are the "workbenches" where cell proteins are assembled?
ribosomes
In which eukaryotic cell structure are ribosomes made?
nucleolus
A stem cell is a cell that generally divides to yield two identical daughter cells that are
partially specialized.
false
The characteristic of self-renewal is what gives a stem cell its identity.
true
A stem cell can divide and give rise to a stem cell and a progenitor cell.
true
A receptor protein that is embedded in the plasma membrane contains
both hydrophilic and hydrophobic regions
Apoptosis is
A) cell death by a programmed pathway.
B) a normal part of development.
Correct sequence of events of the early human prenatal development is
, Fertilization, cleavage, morula, blastocyst, gastrula.
Which statement is true: During the first meiotic division
homologous chromosome pairs separate and the number chromosome is half.
By the end of meiosis I of oogenesis, an oogonium becomes
a secondary oocyte and a polar body.
Secondary spermatocytes and secondary oocytes are
haploid
Fertilization occurs when
Sperm and ovum fuse.
Thalidomide is
a drug that causes congenital defects.
What are similar cells that are grouped together and perform a common function called?
tissue
What are the four basic tissue types:
connective, epithelium, muscle, and nervous tissues
Huntington disease is autosomal dominant. This means that
both sexes can be affected and does not skip generations
If parents with genotypes Gg have one child with a recessive genetic disorder, gg, what is
the chance that their second child will develop the genetic disorder?
Solutions
During which phase DNA synthesis occurs and the replicated chromosomes are joined at
their centromeres?
S phase
Cell divides into two daughter cell during _____ stage of the cell cycle
cytokinesis
A person who has two identical alleles for a particular gene is _____ for that gene.
homozygous
The major macromolecules that make up cells are
carbohydrates, proteins, lipids, and nucleic acids.
The order of events in the cell cycle is
G1 to S to G2 to mitosis.
Sperm and egg cells are haploid, meaning that they have one copy of the human genome.
true
Sperm and egg cells are diploid, meaning that they have two copies of the human genome.
false
Stem cells are haploid, meaning that they have one copy of the human genome.
false
,Somatic cells are haploid, meaning that they have one copy of the human genome.
false
What are the "workbenches" where cell proteins are assembled?
ribosomes
In which eukaryotic cell structure are ribosomes made?
nucleolus
A stem cell is a cell that generally divides to yield two identical daughter cells that are
partially specialized.
false
The characteristic of self-renewal is what gives a stem cell its identity.
true
A stem cell can divide and give rise to a stem cell and a progenitor cell.
true
A receptor protein that is embedded in the plasma membrane contains
both hydrophilic and hydrophobic regions
Apoptosis is
A) cell death by a programmed pathway.
B) a normal part of development.
Correct sequence of events of the early human prenatal development is
, Fertilization, cleavage, morula, blastocyst, gastrula.
Which statement is true: During the first meiotic division
homologous chromosome pairs separate and the number chromosome is half.
By the end of meiosis I of oogenesis, an oogonium becomes
a secondary oocyte and a polar body.
Secondary spermatocytes and secondary oocytes are
haploid
Fertilization occurs when
Sperm and ovum fuse.
Thalidomide is
a drug that causes congenital defects.
What are similar cells that are grouped together and perform a common function called?
tissue
What are the four basic tissue types:
connective, epithelium, muscle, and nervous tissues
Huntington disease is autosomal dominant. This means that
both sexes can be affected and does not skip generations
If parents with genotypes Gg have one child with a recessive genetic disorder, gg, what is
the chance that their second child will develop the genetic disorder?
