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Choose the correct answer:
Chromosomes number is halved in ____________
Mention the contribution of the scientist given below in the study of chromosome:
Strasburger
Mention the contribution of the scientist given below in the study of chromosome:
Waldeyer
Synthesis phase in the cell cycle is called so for the synthesis of more of
Give Reasons for the following
The meiosis is called reductional division
Give Reasons for the following
Chromosomes are the carriers of heredity.
Explain the Term Spindle
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.
Name the following:
Cells having a single set of chromosomes.
Give Technical Term:
Transmission of characters through generations.
Complete the following sentence with appropriate word:
The number of chromosomes in humans is ________.
Column ‘II’ is a list of items related to ideas in Column ‘I’. Match the term in Column ‘II’ with a suitable idea given in Column ‘I’.
| Column I | Column II |
| Genetics | Chromosomes are similar in size and shape. |
| Autosomes | The alternative forms of a gene. |
| Recessive gene | Study of laws of inheritance of characters |
| Allele | A gene that can express only when in a similar pair. |
| Homologous chromosomes | Chromosomes are other than the pair of sex chromosomes. |
Very Short Answer Question.
What is allosome?
Some of the chromosomes have an elongated knob-like appendages known as telomere.
______ is a sudden permanent heritable change that can occur in the gene, in the chromosome or chromosome number.
In the human male, a sperm contains autosomes and ______.
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.
Distinguish between the following pair:
Karyotype and Karyokinesis
