Advertisements
Advertisements
प्रश्न
Rewrite the correct form of the statement by changing the first or last word only:
Duplicated chromosomes remain attached at a point termed as centrosome.
उत्तर
Duplicated chromosomes remain attached at a point termed as centromere.
संबंधित प्रश्न
What are genes?
Match the events given in column A with the phase in mitotic cell division in column B.
| Column ‘A’ | Column ‘B’ | ||
| 1. | Chromosomes get arranged in a horizontal plane at the equator. |
a. | Anaphase |
| 2. | Daughter chromosomes move to the opposite poles of a spindle |
b. | Prophase |
| 3. | Chromosomes become visible as fine, long threads. |
c. | Telophase |
| 4. | Chromosomes lose their distinctiveness and gradually become transformed into a chromatin network. |
d. | Metaphase |
Choose the correct answer:
Thick short chromosomes can be observed at (in mitosis) ___________
Choose the correct answer:
Sex of an individual is determined by ____________
What are chromosomes?
Enumerate the various changes that occur in the nucleus of the cell during prophase.
What is the importance of meiosis in creating variations?
Give Reasons for the following
The meiosis is called reductional division
Give Technical Terms
The stage at which synapsis in chromosomes to form bivalents.
State the Location: Chromosomes
In humans, the sex chromosome complement is
Define euploidy.
Give the example of X- monosomy you have studied.
The centromere is found at the centre of the ______ chromosome.
The number of chromosomes found in human beings is ______.
Read the following statements and select the correct option.
Statement I: The densely packed transcriptionally active, light staining region of chromatin is known as 'Heterochromatin'.
Statement II: The loosely packed, dark staining transcriptionally inactive region of chromatin is known as 'Euchromatin'.
Which of the following is TRUE with respect to the genes which inherit together during crossing over?
The chromosomes are duplicated in ______.
Distinguish between the following pair:
Karyotype and Karyokinesis
