Advertisements
Advertisements
Question
Write the functional activity of the following structure:
Spindle fibers
Solution
Support chromosomes at the time of cell division.
APPEARS IN
RELATED QUESTIONS
Synthesis phase in the cell cycle is called so, because of the synthesis of more:
A. RNA
B. RNA and proteins
C. DNA
D. Glucose
Correct the following statement if there is any mistake:
If there are 46 chromosomes in a cell, there will be 23 chromatin fibres inside the nucleus during interphase.
Choose the correct answer:
Chromosome is most coiled at (in mitosis) ____________
Choose the correct answer:
Centromere is related to _______________
Mention the contribution of the scientist given below in the study of chromosome:
Balbiani
Write a sentence of the following:
Telomere
What is the importance of meiosis in creating variations?
State how does meiosis maintains chromosome number in a species.
Multiple Choice Question:
How many chromosomes are found in a cell of humans?
State the Location: Chromosomes
Name the following:
The pattern of arrangement of genes along a chromosome.
Complete the following sentence with appropriate word:
The number of chromosomes in humans is ________.
Explain the structure of chromosomes with labelled diagram.
The number of chromosomes found in human beings is ______.
Match the following.
| 1. Autosomes | - | Trisomy 21 |
| 2. Diploid condition | - | 9 : 3 : 3 : 1 |
| 3. Allosome | - | 22 pair of chromosome |
| 4. Down’s syndrome | - | 2n |
| 5. Dihybrid ratio | - | 23rd pair of chromosome |
Generally, the recessive character is expressed only when present in a double recessive condition i.e. homozygous condition. However, a single recessive gene can express itself in human beings when the gene is present on ______
Differentiate between X-chromosome and Y-chromosome with reference to –
- length of non-homologous regions
- type as per the position of the centromere
The two non-sister chromatids of a paired chromosome are attached to each other at ______ during the process of crossing over.
