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