BSC 1005 Exam 3 Questions and Answers
genes are carried on - -chromosomes
-a ________ is an example of an organism that produces asexually - -philodendron
-chromosomes are found in the - -nucleus
-chromatin consists of - -dna and proteins
-what are nucleosomes made of - -dna wrapped around histone proteins
-a duplicated chromosome consists of two - -chromatids
-sister chromatids are joined at the - -centromere
-which of the following does NOT occur during interphase - -chromatin becomes tightly
coiled
-the cell cycle results in the production of - -two identical diploid cells
-which of the following occurs during prophase - -the mitotic spindle begins to form
-which is not a stage of mitosis - -interphase
-the correct sequence of the cell cycle - -interphase, prophase, metaphase, anaphase,
telophase
-during metaphase - -chromosomes line up on the midline of the cell
-which of these events occur during anaphase - -centromeres divide
-during telophase - -the events of prophase are reversed
-a cell that completed the cell cycle WITHOUT undergoing cytokinesis would - -have two
nuclei
-during which stage of the cell cycle does cytokinesis usually occur - -telophase
-what is the difference between a benign and malignant tumor - -a malignant tumor
metastasize and a benign does not
-skin cancer is a type of - -carcinoma
-which of these will help you achieve your goal of dying of cancer - -avoid colonoscopies
, -a karyotype would be unable to determine - -eye color
-homologous chromosomes - -carry the same gene sequence
-what is the sex chromosome of a normal human male - -XY
-how many autosomes do humans have - -44
-genetically, human.... - -children are equally
-chromosomes that do not determine sex are called - -autosomes
-how does prophase I differ from prophase II - -prophase I =one diploid cell; prophase II=
2 haploid cells
-how much genetic material is present in a cell during prophase I compared with a cell that
has completed meiosis II - -twice as much
-during prophase I, the pairing of homologus chromosomes results in the formation of a - -
tetrad
-during metaphase I - -tetrads line up on the midline of the cell
-upon completion of telophase I and cytokinesis there are ______ cells - -2 haploid
-which of the following occurs during prophase I but not prophase II - -tetrads form
-difference between mitotic anaphase and anaphase II - -anaphase II=cells are haploid and
sister chromatids seperate; mitotic anaphase = cells are diploid and homologous pairs
seperate
-genetic variation is NOT increased by - -the events of anaphase II
-anaphase I - -homologous chromosomes seperate and migrate to opposite poles; which
homologue goes to which pole is randome
-for a species with four pair of chromosomes, how many genetic combinations are possible
- -16
-_________ represents sites of crossing over - -chiasma
-crossing over during prophase I results in - -genetic recombination
-how many chromosomes will a gamete produce as a result of nondisjunction - -n +1 or n-
1
genes are carried on - -chromosomes
-a ________ is an example of an organism that produces asexually - -philodendron
-chromosomes are found in the - -nucleus
-chromatin consists of - -dna and proteins
-what are nucleosomes made of - -dna wrapped around histone proteins
-a duplicated chromosome consists of two - -chromatids
-sister chromatids are joined at the - -centromere
-which of the following does NOT occur during interphase - -chromatin becomes tightly
coiled
-the cell cycle results in the production of - -two identical diploid cells
-which of the following occurs during prophase - -the mitotic spindle begins to form
-which is not a stage of mitosis - -interphase
-the correct sequence of the cell cycle - -interphase, prophase, metaphase, anaphase,
telophase
-during metaphase - -chromosomes line up on the midline of the cell
-which of these events occur during anaphase - -centromeres divide
-during telophase - -the events of prophase are reversed
-a cell that completed the cell cycle WITHOUT undergoing cytokinesis would - -have two
nuclei
-during which stage of the cell cycle does cytokinesis usually occur - -telophase
-what is the difference between a benign and malignant tumor - -a malignant tumor
metastasize and a benign does not
-skin cancer is a type of - -carcinoma
-which of these will help you achieve your goal of dying of cancer - -avoid colonoscopies
, -a karyotype would be unable to determine - -eye color
-homologous chromosomes - -carry the same gene sequence
-what is the sex chromosome of a normal human male - -XY
-how many autosomes do humans have - -44
-genetically, human.... - -children are equally
-chromosomes that do not determine sex are called - -autosomes
-how does prophase I differ from prophase II - -prophase I =one diploid cell; prophase II=
2 haploid cells
-how much genetic material is present in a cell during prophase I compared with a cell that
has completed meiosis II - -twice as much
-during prophase I, the pairing of homologus chromosomes results in the formation of a - -
tetrad
-during metaphase I - -tetrads line up on the midline of the cell
-upon completion of telophase I and cytokinesis there are ______ cells - -2 haploid
-which of the following occurs during prophase I but not prophase II - -tetrads form
-difference between mitotic anaphase and anaphase II - -anaphase II=cells are haploid and
sister chromatids seperate; mitotic anaphase = cells are diploid and homologous pairs
seperate
-genetic variation is NOT increased by - -the events of anaphase II
-anaphase I - -homologous chromosomes seperate and migrate to opposite poles; which
homologue goes to which pole is randome
-for a species with four pair of chromosomes, how many genetic combinations are possible
- -16
-_________ represents sites of crossing over - -chiasma
-crossing over during prophase I results in - -genetic recombination
-how many chromosomes will a gamete produce as a result of nondisjunction - -n +1 or n-
1
