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Question
Complete the following sentence with appropriate word :
The spindle fibers are made of _______.
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Solution
The spindle fibers are made of Microtubules.
RELATED QUESTIONS
Synthesis phase in the cell cycle is called so, because of the synthesis of more ______.
Name the sex chromosomes in human males and females
Correct the following statement if there is any mistake:
Genes are specific sequences of bases on a chromosome .
Given below is a schematic diagram of a portion of DNA.
- How many strands are shown in the diagram?
- How many nucleotides have been shown in each strand?
- Name the parts numbered 1, 2, 3, 4 and 5 respectively.
- Name the DNA unit constituted by the parts 1, 2, 3 collectively.
Answer the following question in your own words.
What is meant by ‘chromosome’?
Chromosomes are mainly made up of ______.
Choose the correct answer:
Chromosome is most coiled at (in mitosis) ____________
Choose the correct answer:
Thick short chromosomes can be observed at (in mitosis) ___________
Why gametes have a haploid number of chromosomes?
Give Reasons for the following
Chromosomes are the carriers of heredity.
Complete the following sentence with appropriate word :
Polytene chromosomes are found in _________ of fly larvae.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Chromosomes other than sex-chromosomes are autonomous.
Multiple Choice Question:
How many chromosomes are found in a cell of humans?
The centromere is found at the centre of the ______ 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 ______
Small swellings on the surface of the chromosome are called______.
Which of the following statements are correct?
- X chromosome has large amount of euchromatin.
- heterochromatin is genetically inert.
- Both X and Y chromosomes are homologous.
- Crossing over does not take place in sex chromosomes in female.
Choose the correct option.
