Crossing Over And The Random Distribution

Question 11Crossing over and the random distribution of maternal and paternal chromosomes are responsible for
(Points : 1)
genetic stability
cell division
genetic variation
DNA synthesis
none of the above
Question 22A measurable or observable trait or characteristic of an organism is called a(n)
(Points : 1)
phenotype
genotype
allele
gene
Question 33A functional chromosome contains which of the following?
(Points : 1)
origin of replication
telomeres
centromeres
all of the above
Question 44Errors in chromosome separation are rarely a problem for an organism
(Points : 1)
True
False
Question 55Genetics contribute to advances in:
(Points : 1)
agriculture
pharmaceuticals
medicine
modern biology
All of the above
Question 66Bacteria and viruses can be used to study genes and inheritance, even though they are structurally and metabolically different from animal and plant cells
(Points : 1)
True
False
Question 77The function(s) of a DNA repair gene is studied by the subdivision of genetics called:
(Points : 1)
population genetics
transmission genetics
molecular genetics
Question 88Sister chromatids separate and move toward opposite poles during which phase of mitosis?
(Points : 1)
prophase
pro-metaphase
metaphase
anaphase
telophase
Question 99If a typical somatic cell has 32 chromosomes, how many chromosomes are expected in each gamete of that organism?
(Points : 1)
46
64
0
16
32
Question 1010Progression through the different phases of the cell cycle is regulated by key transition points called checkpoints
(Points : 1)
True
False
Question 1111Crossing over usually occurs during
(Points : 1)
meiosis I
meiosis II
mitosis
S-phase
Crossing over occurs randomly in all division types
Question 1212Genetic information can be carried in which of the following biomolecules?
(Points : 1)
proteins
DNA and not RNA
RNA and not DNA
Either DNA or RNA
Question 1313A eukaryotic cell in G1 has a mutation that prevents cyclin B from being madeAt which cell cycle stage would this cell stop?
(Points : 1)
G1
S

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