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Bio Exam 3 Review Flashcards | StudBud
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Bio Exam 3 Review
Bio Exam 3 Review
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Questions
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Answers
1
Which sex chromosome is hemophilia located
Y
X
2
An animal is 2n=40. Based on this information, you know that ___
Each of its somatic cells has 40 chromosomes
it's haploid number is 40
It has 40 homologous chromosomes
It's DNA has just been replicated
3
In animals, the cells that will eventually undergo meiosis to produce gametes are set aside early in development called
Germ line cells
gametes
Somatic cells
Sex cells
4
The stage of mitosis where chromosomes arrange at the middle of the cell along the equatorial plane
Metaphase
Telophase
Interphase
Prophase
5
The stage of the cell cycle during which the cytoplasm divides to form two cells is called
Cytokinesis
Anaphase
Telophase
G2
6
The allelic make up of a cell or individual is referred to as its
Pedigree
Phenotype
Genotype
Blueprint
7
The fusion of the male gamete with the female gamete...
Meiosis
Synapsis
Syngamy
Recombination
8
Alternate forma of the same gene are called...
Phenotypes
Alleles
Genotypes
Homologues
9
A centromere...
Is a microtubule-organizing center
is the site of tubulin synthesis
Is the region where sister chromatids are attached prior to separation
is required for division in animal cells but not other cells
10
Homologous chromosomes are aligned side by side in the middle of the cell during __ each being held together by__
Metaphase I, chiasmata
Prophase I, cohesin
Metaphase II, syngamy
Anaphase I, syngamy
11
What type of cells contain only one set of chromosomes?
Haploid
Germ line cells
Diploid
Somatic Cells
12
Centrosomes are found
In plants and animals
Only Plants
Only Animals
In autotrophs
13
While homologous chromosomes are paired during Prophase I of meiosis, genetic exchange may occur called __
Crossing Over
Syngamy
Independent Assortment
Synapsis
14
Which of the following occurs during anaphase
The cell elongates
Cohesin proteins are made and become concentrated at centromere
Sister chromatids are pulled apart when kinetochore microtubules shorten
All of the above
15
In what phase are the chromosomes reduced
Meiosis II
Mitosis II
Meiosis I
Mitosis I
16
Which best describes the process of independent assortment
Sgregtion of chrmosoms. during MI is independent of sgregtion during MII
Crossing ovr of one pair is independent from crossing ovr of others
Way one pair line up along M plate does not affect how others line up
During synapsis, chromosomes pair up at random
17
Type of cross used to determine whether an individual is homozygous or heterozygous
Dihybrid cross
Test cross
Reciprocal cross
Double cross
18
This term can be used to describe a diploid organism that has two identical alleles for a trait
Dominant
Heterozygous
Homozygous
Recessive
19
How is Cytokinesis in plant cells different from cytokinesis in animal cells
plant > occurs after G2. Animal > occurs after M phase
plant > one nuclei. Animal > two nuclei
plant > haploid cells. Animal > diploid cells
Plant > cell plate. Animal > Cleavage furrow
20
How many gametes can AaBBccEe make?
6
4
8
12
21
During what stages of the cell cycle are sister chromatids bound together by cohesion
G1,S, G2
S, G2, prophase, metaphase, anaphase, telophase
G1, S
S, G2, Prophase, Metaphase
22
Twins are separated at birth. One received better nutrition and ends up scoring higher on standardized test. This is...
Environment alters genotype
Environment alters phenotype
Mutation alters genotype
Mutation alters phenotype
23
Interphase is made up of what stages of the cell cycle
G0,G1,G2, and S
G1, S, G2
PMAT
S and Cytokinesis
24
The observable outward manifestation of the genes of an individual is referred to as its...
Blueprint
Pedigree
Genotype
Phenotype
25
P= Pink. p= purple. T=short. t= tall. What is the phenotype of PpTt?
Purple and short
Purple and Tall
Pink and tall
Pink and short
26
The stage of mitosis characterized by the physical separation of sister chromatids is called ___
Telophase
Metaphase
Anaphase
Prophase
27
Compared to asexual reproduction, the main advantage of sexual reproduction is...
Can produce more complex offspring
Require less energy
Increases the genetic diversity of the offspring
can produce more offspring
28
2n = 28. How many chromosomes are present in each cell after Meiosis I but before Meiosis II
7
28
14
56
