In tissue culture experiments, leaf mesophyll cells are put in a culture medium to form callus. This phenomenon may be called as
Given below are two statements :
Statement I : Endarch and exarch are the terms often used for describing the position of secondary xylem in the plant body.
Statement II : Exarch condition is the most common feature of the root system.
In the light of the above statements, choose the correct answer from the options given below:
Match List I with List II:
| List I | List II | ||
|---|---|---|---|
| (A) | M Phase | (I) | Proteins are synthesized |
| (B) | G$$_2$$ Phase | (II) | Inactive phase |
| (C) | Quiescent stage | (III) | Interval between mitosis and initiation of DNA replication |
| (D) | G$$_1$$ Phase | (IV) | Equational division |
Choose the correct answer from the options given below :
Which of the following statements are correct about Klinefelter’s Syndrome?
A. This disorder was first described by Langdon Down (1866).
B. Such an individual has overall masculine development. However, the feminine development is also expressed.
C. The affected individual is short statured.
D. Physical, psychomotor and mental development is retarded.
E. Such individuals are sterile.
Choose the correct answer from the options given below :