443172
Descripción
Test por gina_evans0312, actualizado hace más de 1 año
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Creado por gina_evans0312
hace más de 10 años
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Pregunta 1
Pregunta
During Meiosis I, chromosome structure changes only slightly
Respuesta
- True
- False
Pregunta 2
Respuesta
-
Leptotene
-
Xygotene
-
Diplotene
Pregunta 3
Respuesta
-
Leptotene
-
Zygotene
-
Pacytene
Pregunta 4
Respuesta
-
Leptotene
-
Pacytene
-
Diplotene
Pregunta 5
Respuesta
-
Diplotene
-
Pacytene
-
Leptotene
Pregunta 6
Pregunta
In which stage of chromosome rearrangement are Rabl and Bouquet formations found?
Respuesta
-
Zygotene
-
Diplotene
-
Pacytene
Pregunta 7
Pregunta
Chromosome movement is vital for pairing
Respuesta
- True
- False
Pregunta 8
Pregunta
Match the word to it's definition- the occurrence of linked genes in non random proportions in members of the population
Respuesta
-
Linkage disequilibium
-
Mendel's 2nd law
-
The Hardy-Weinberg principle
Pregunta 9
Pregunta
Linkage between two genes can only be broken by _
Respuesta
-
Crossing over
-
Rabl formations
-
Linkage disequilibrium
Pregunta 10
Pregunta
Genetic Map Distance = % crossing over
Respuesta
- True
- False
Pregunta 11
Pregunta
Genetic Map distance is measured in
Respuesta
-
centiMorgans (cM)
-
centiMullers (cM)
-
centiMorays (cM)
Pregunta 12
Pregunta
1 cM = ?
Respuesta
-
1% crossover recombination
-
10% crossover recombination
-
5% crossover recombination
Pregunta 13
Pregunta
% Crossing over = [(No of recombinants/total gametes) x 100] x 2
Respuesta
- True
- False
Pregunta 14
Pregunta
How is meiotic recombination initiated?
Respuesta
-
Double strand breaks
-
Single strand breaks
-
T-T lesions
Pregunta 15
Pregunta
Which of the following proteins non-randomly damages the DNA in meiotic cells?
Respuesta
-
Spo11
-
Spo10
-
Spo
Pregunta 16
Pregunta
Once breaks are formed by Spo_, they are monitored by mismatch repair proteins
Respuesta
- True
- False
Pregunta 17
Pregunta
What is the role of mismatch repair proteins?
Respuesta
-
To monitor induced DNA damage
-
To detect and reverse any incorrect DNA pairings
-
To detect and amplify any incorrect pairings
Pregunta 18
Pregunta
The damage to the DNA is done one chromosome at a time
Respuesta
- True
- False
Pregunta 19
Pregunta
Why are the breaks formed useful?
Respuesta
-
They ensure meiotic cell machinery is working properly
-
They are a precursor to chiasma
-
They prevent meiosis until the cell is ready
-
Ensure the pairing of homologous chromosomes
Pregunta 20
Pregunta
Meiosis can proceed happily without the DNA damage occuring
Respuesta
- True
- False
Pregunta 21
Pregunta
All chromosomes will get at least once crossover (known as interference)
Respuesta
- True
- False
Pregunta 22
Pregunta
What is the synaptonemal complex?
Respuesta
-
A structure that formed between homologous chromosomes during meiosis
-
A structure that formed between sister chromatids during meiosis
Pregunta 23
Pregunta
Which of the following are meiosis specific repair proteins?
Respuesta
-
Spo11
-
EXO1
-
MLH1
-
MLH3
-
Braf
-
C-myc
Pregunta 24
Pregunta
Increasing the distance between two genes decreases the chance of a crossover occurring between them
Respuesta
- True
- False
Pregunta 25
Pregunta
Parent Genotypes are homologous for AB & ab respectively
The gametes have the genotypes 35, 15, 15, 35 for AB, Ab, aB and ab respectively
How far apart are AB/ab in cM?
Respuesta
-
60 cM
-
15cM
-
30cM
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