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Biology Exam Questions Medical Entrance Exams GK Quiz. Question and Answers related to Biology Exam Questions Medical Entrance Exams. MCQ (Multiple Choice Questions with answers about Biology Exam Questions Medical Entrance Exams
How do chromatids reach the poles of the cells during anaphase?
Options
A : Action of centromeres
B : Disintegration of spindle fibers
C : Shortening of microtubules
D : Movement of arms of chromatids
Which of these statements is true about meiosis I?
Options
A : Crossing over leads to genetic variability
B : Diplotene is short lived in vertebrates
C : Diakinesis is followed by cytokinesis
D : Chiasmata formation occurs during metaphase I
At what stage can one visualize chiasmata?
Options
A : Diplotene
B : Pachytene
C : Leptotene
D : Zygotene
The stage preceding the stage during which crossing over takes place is ______
Options
A : diplotene
B : pachytene
C : zygotene
D : leptotene
What is the enzyme involved in crossing over?
Options
A : Isomerase
B : Invertase
C : Transferase
D : Recombinase
Which of the following statements is false regarding interkinesis?
Options
A : It is mostly short lived
B : It is followed by prophase II
C : It occurs after telophase I
D : Replication takes place
During which stage does the synaptonemal complex dissolve?
Options
A : Leptotene
B : Pachytene
C : Diplotene
D : Zygotene
Identify the phase of meiosis.
Options
A : Metaphase II
B : Metaphase I
C : Prophase II
D : Prophase I
During which stage does assembly of meiotic spindle take place?
Options
A : Pachytene
B : Diakinesis
C : Metaphase I
D : Diplotene
Which of these is true about anaphase I?
Options
A : Sister chromatids remain attached at the centromeres
B : Bivalent is unequally separated
C : Homologous chromosomes remain together
D : It takes place before diakinesis
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