BIO 235 (Kovacs) Exam 1 UPDATED
ACTUAL Exam Questions and CORRECT
Answers
how many chromosomes do most prokaryotes have? - CORRECT ANSWER - one
how many copies of their chromosome(s) do prokaryotes have? - CORRECT ANSWER -
one
what organisms undergo binary fission? - CORRECT ANSWER - bacterial cells
why do bacterial chromosomes get replicated before the cell divides? - CORRECT
ANSWER - so each daughter cell receives one copy
do eukaryotic or prokaryotic cells require more genetic information? - CORRECT
ANSWER - eukaryotic
what is required in order to pass complements of chromosomes to the next generation? -
CORRECT ANSWER - a sorting mechanism
structures within living cells that contain the genetic material - CORRECT ANSWER -
chromosome
what is the genetic material in chromosomes? - CORRECT ANSWER - DNA
what provides an organized structure in chromosomes? - CORRECT ANSWER - proteins
what is the DNA-protein complex called in eukaryotes? - CORRECT ANSWER -
chromatin
,what is the DNA-protein complex called in prokaryotes? - CORRECT ANSWER -
nucleoid
the constricted region joining the two sister chromatids that make up an X-shaped chromosome
and the site where kinetochore is formed - CORRECT ANSWER - centromere
a region of repetitive nucleotide sequences at each end of a chromosome, which protects the end
of the chromosome from deterioration or from fusion with neighboring chromosomes -
CORRECT ANSWER - telomere
a particular sequence in a genome at which replication is initiated - CORRECT
ANSWER - origins of replication
a protein structure that forms on a chromatid during cell division and allows it to attach to a
spindle fiber on a chromosome - CORRECT ANSWER - kinetochore
members of a pair of chromosomes - CORRECT ANSWER - homologs
two homologs form what? - CORRECT ANSWER - homologous pair
what are the similarities between two chromosomes in a homologous pair? - CORRECT
ANSWER - they are nearly identical in size, have the same banding pattern and
centromere location, and they have the same genes but not necessarily the same alleles
how many sets of chromosomes do diploid cells have? - CORRECT ANSWER - two
how many sets of chromosomes do haploid cells have? - CORRECT ANSWER - one
, an organized representation of the metaphase chromosomes within a diploid eukaryotic cell -
CORRECT ANSWER - karyotype
chromosomes that come in pairs (homologs) are called what? - CORRECT ANSWER -
autosomes
are the sex chromosomes, X and Y, homologous and why? - CORRECT ANSWER - no
because they differ in size and genetic composition, but they do have regions of homology
why do eukaryotic cells undergo mitosis? - CORRECT ANSWER - to ensure that the
daughter cells receive one complete set of chromosomes (one copy of each chromosome)
what is the repeating pattern of cell growth followed by cell division called? - CORRECT
ANSWER - cell cycle
what are the phases G1, S, and G2 collectively called? - CORRECT ANSWER -
interphase
during what phase in interphase does the cell grow in volume? - CORRECT ANSWER -
G1
what is the name of the phase a cell is in when progression through the cell cycle is postponed or
when a cell decides to never divide again? (ex: nerve cells) - CORRECT ANSWER - G0
what are the cells called who decide to never divide again? - CORRECT ANSWER -
terminally differentiated cells or post-mitotic cells
during what phase in interphase are the chromosomes replicated? - CORRECT
ANSWER -S
two copies of a replicated chromosome - CORRECT ANSWER - chromatids
ACTUAL Exam Questions and CORRECT
Answers
how many chromosomes do most prokaryotes have? - CORRECT ANSWER - one
how many copies of their chromosome(s) do prokaryotes have? - CORRECT ANSWER -
one
what organisms undergo binary fission? - CORRECT ANSWER - bacterial cells
why do bacterial chromosomes get replicated before the cell divides? - CORRECT
ANSWER - so each daughter cell receives one copy
do eukaryotic or prokaryotic cells require more genetic information? - CORRECT
ANSWER - eukaryotic
what is required in order to pass complements of chromosomes to the next generation? -
CORRECT ANSWER - a sorting mechanism
structures within living cells that contain the genetic material - CORRECT ANSWER -
chromosome
what is the genetic material in chromosomes? - CORRECT ANSWER - DNA
what provides an organized structure in chromosomes? - CORRECT ANSWER - proteins
what is the DNA-protein complex called in eukaryotes? - CORRECT ANSWER -
chromatin
,what is the DNA-protein complex called in prokaryotes? - CORRECT ANSWER -
nucleoid
the constricted region joining the two sister chromatids that make up an X-shaped chromosome
and the site where kinetochore is formed - CORRECT ANSWER - centromere
a region of repetitive nucleotide sequences at each end of a chromosome, which protects the end
of the chromosome from deterioration or from fusion with neighboring chromosomes -
CORRECT ANSWER - telomere
a particular sequence in a genome at which replication is initiated - CORRECT
ANSWER - origins of replication
a protein structure that forms on a chromatid during cell division and allows it to attach to a
spindle fiber on a chromosome - CORRECT ANSWER - kinetochore
members of a pair of chromosomes - CORRECT ANSWER - homologs
two homologs form what? - CORRECT ANSWER - homologous pair
what are the similarities between two chromosomes in a homologous pair? - CORRECT
ANSWER - they are nearly identical in size, have the same banding pattern and
centromere location, and they have the same genes but not necessarily the same alleles
how many sets of chromosomes do diploid cells have? - CORRECT ANSWER - two
how many sets of chromosomes do haploid cells have? - CORRECT ANSWER - one
, an organized representation of the metaphase chromosomes within a diploid eukaryotic cell -
CORRECT ANSWER - karyotype
chromosomes that come in pairs (homologs) are called what? - CORRECT ANSWER -
autosomes
are the sex chromosomes, X and Y, homologous and why? - CORRECT ANSWER - no
because they differ in size and genetic composition, but they do have regions of homology
why do eukaryotic cells undergo mitosis? - CORRECT ANSWER - to ensure that the
daughter cells receive one complete set of chromosomes (one copy of each chromosome)
what is the repeating pattern of cell growth followed by cell division called? - CORRECT
ANSWER - cell cycle
what are the phases G1, S, and G2 collectively called? - CORRECT ANSWER -
interphase
during what phase in interphase does the cell grow in volume? - CORRECT ANSWER -
G1
what is the name of the phase a cell is in when progression through the cell cycle is postponed or
when a cell decides to never divide again? (ex: nerve cells) - CORRECT ANSWER - G0
what are the cells called who decide to never divide again? - CORRECT ANSWER -
terminally differentiated cells or post-mitotic cells
during what phase in interphase are the chromosomes replicated? - CORRECT
ANSWER -S
two copies of a replicated chromosome - CORRECT ANSWER - chromatids
