BIOLOGY 1406 FINAL EXAM QUESTIONS AND
ANSWERS 100% PASS | ALREADY GRADED A+|
VERIFIED AND UPDATED
Telophase and Cytokinesis - correct answer-In mitosis- chromosomes
decondense and the nuclear envelope reforms. Cytokinesis separates
the mother cell into two daughter cells, which begins with a cleavage
furrow in animal cells.
meiosis - correct answer-a process in cell division during which the
number of chromosomes decreases to half the original number by two
divisions of the nucleus, which results in the production of sex cells
bivalent - correct answer-Homologous pairs of sister chromatids
associated with each other, lying side by side
synapsis - correct answer-process of forming a bivalent
,function of bivalent - correct answer-contributes to the genetic diversity
of a species
Meiosis 1 - correct answer-separates homologous chromosomes-
results in 2 haploid daughter cells with half the number of
chromosomes as the original cell, the daughter cells have a set of
chromosomes and alleles that are different from each other an from the
original diploid cell
Meiosis 2 - correct answer-produces 4 haploid daughter cells, separates
sister chromatids
Meiosis 1 vs Meiosis 2 vs Mitosis - correct answer--mitosis begins with
12 chromatids that are joined together as 6 pairs of sister chromatids
-meiosis 2 begins with 6 chromatids that are joined together as 3 pairs
of sister chromatids
-mitosis ends with two daughter cells that are diploid
-meiosis 2 ends with four daughter cells that are haploid
,Steps in Meiosis 1 - correct answer-1. Prophase 1
2. Metaphase 1
3. Anaphase 1
4. Telophase 1 and cytokinesis
Steps in Meiosis 2 - correct answer-1. Prophase 2
2. Prometaphase 2
3. Metaphase 2
4. Anaphase 2
5. Telophase 2 and cytokinesis
euploid - correct answer-normal chromosome number
polyploid - correct answer-a condition in which a cell contains three or
more sets of homologous chromosomes
aneuploidy - correct answer-an organism in which the chromosome
number is not an exact multiple of the haploid number
, monosomic - correct answer-A chromosomal condition in which a
particular cell has only one copy of a chromosome, instead of the
normal two
trisomic - correct answer-referring to a diploid cell that has three copies
of a particular chromosome instead of the normal two
nondisjunction - correct answer-error in meiosis in which homologous
chromosomes don't separate; gametes end up with wrong number of
chromosomes
alloploid - correct answer-Contains at least one set of chromosomes
from two or more different species
triple X syndrome - correct answer-A genetic abnormality in which a
female has an extra X sex chromosome; characterized by decreased
fertility, some genital abnormality, and slight mental retardation.
ANSWERS 100% PASS | ALREADY GRADED A+|
VERIFIED AND UPDATED
Telophase and Cytokinesis - correct answer-In mitosis- chromosomes
decondense and the nuclear envelope reforms. Cytokinesis separates
the mother cell into two daughter cells, which begins with a cleavage
furrow in animal cells.
meiosis - correct answer-a process in cell division during which the
number of chromosomes decreases to half the original number by two
divisions of the nucleus, which results in the production of sex cells
bivalent - correct answer-Homologous pairs of sister chromatids
associated with each other, lying side by side
synapsis - correct answer-process of forming a bivalent
,function of bivalent - correct answer-contributes to the genetic diversity
of a species
Meiosis 1 - correct answer-separates homologous chromosomes-
results in 2 haploid daughter cells with half the number of
chromosomes as the original cell, the daughter cells have a set of
chromosomes and alleles that are different from each other an from the
original diploid cell
Meiosis 2 - correct answer-produces 4 haploid daughter cells, separates
sister chromatids
Meiosis 1 vs Meiosis 2 vs Mitosis - correct answer--mitosis begins with
12 chromatids that are joined together as 6 pairs of sister chromatids
-meiosis 2 begins with 6 chromatids that are joined together as 3 pairs
of sister chromatids
-mitosis ends with two daughter cells that are diploid
-meiosis 2 ends with four daughter cells that are haploid
,Steps in Meiosis 1 - correct answer-1. Prophase 1
2. Metaphase 1
3. Anaphase 1
4. Telophase 1 and cytokinesis
Steps in Meiosis 2 - correct answer-1. Prophase 2
2. Prometaphase 2
3. Metaphase 2
4. Anaphase 2
5. Telophase 2 and cytokinesis
euploid - correct answer-normal chromosome number
polyploid - correct answer-a condition in which a cell contains three or
more sets of homologous chromosomes
aneuploidy - correct answer-an organism in which the chromosome
number is not an exact multiple of the haploid number
, monosomic - correct answer-A chromosomal condition in which a
particular cell has only one copy of a chromosome, instead of the
normal two
trisomic - correct answer-referring to a diploid cell that has three copies
of a particular chromosome instead of the normal two
nondisjunction - correct answer-error in meiosis in which homologous
chromosomes don't separate; gametes end up with wrong number of
chromosomes
alloploid - correct answer-Contains at least one set of chromosomes
from two or more different species
triple X syndrome - correct answer-A genetic abnormality in which a
female has an extra X sex chromosome; characterized by decreased
fertility, some genital abnormality, and slight mental retardation.
