The evidence that crossing over occurs at four stranded stage and not – McqOptions

MCQOPTIONS

1.	The evidence that crossing over occurs at four stranded stage and not at two stranded stage of the chromosomes, comes from [DPMT 1993]
A.	2 : 2 : 2 : 2 arrangement of ascospores in Neurospora
B.	4 : 4 arrangement of ascospores in Neurospora
C.	Studies of meiosis in maize
D.	Studies on linkage maps of chromosomes in Drosophila
Answer» B. 4 : 4 arrangement of ascospores in Neurospora

Discussion

No Comment Found

Related MCQs

Which part of the world has a high density of organisms?
The given diagram shows different parts of human eye with one part labeled as X. Which the following statement is correct regarding label X?
In dicots, the most common pollen tetrad is:
Which of the following plants yields oil and fibre both?
Which of the following statement (s) is/are correct? (i) According to the WHO, reproductive health is total well-being in the physical, social, emotional, behavioural aspects of reproduction. (ii) According to the WHO, reproductive health is total well-being in the physical, social and emotional aspects of reproduction. (iii) A reproductively healthy society has people with physically and functionally normal reproductive organs. (iv) Reproductively healthy societies have abnormal sex-related emotional and behavioural interactions.
Read the assertion and reason carefully: Assertion : Whole compound leaf of Clematis converts into tendril. Reason : Gloriosa superba shows whole leaf tendril.
The given figure refers to reproductive system of female cockroach. Choose the correct of non-showing the correct labellings indicated by A,
In cockroach, the number of ganglia are:
Read the assertion and reason carefully: Assertion : Actinomorphic flowers show radial symmetry. Reason : Zygomorphic flowers have bilateral symmetry.
For vegetative propagation, the vegetative part of the plant should have:

Related Topics

Biology

Chemistry

Physics

Recent Visits