Advertisements
Advertisements
प्रश्न
Mention whether the following statement is (T) Or (F). Give reason in support of your answer.
The unfertilized human egg has half the number of chromosomes of the body cells.
पर्याय
True
False
Advertisements
उत्तर
True
All types of human cells, have 46 chromosomes. The only type of cell which does not have 46 chromosomes are the sex cells, which have only half of the number, so they have 23 chromosomes. The egg cell is a sex cell (found in female). So it must have 23 chromosomes.
संबंधित प्रश्न
Choose the best option out of the four alternatives a, b, c and d
Question 1:
The number of chromosomes in a certain type of cell division is halved. This kind of cell
division occurs in.
(a) Only testis
(b) Only ovary
(c) Both ovary and testis
(d) All body cells
Humans have 46 chromosomes. Their sperms and eggs will have ______ chromosomes each.
Fill in the blank
The _______ (s) are surrounded by radiating rays called aster
“First meiotic division is the reduction division” what does the word ‘reduction’ refer to in this statement?
Choose the correct answer:
In an interphase cell chromosome are as _____________
Choose the correct answer:
Minimum coiling in chromosome is at ______________
Choose the correct answer:
Chromosomes largely consist of _______________
The number of chromosomes in a certain type of cell division is halved. This kind of cell division occurs in ______.
Synthesis phase in the cell cycle is called so for the synthesis of more of
Differentiate between
Cytokinesis in plant and animal cell
Draw a duplicate chromosome and label its part.
Explain the Term Zygotene
Explain the Term Chromosomes
Name the following:
The part of the cell associated with heredity.
Name the following:
Pairs of chromosomes, present in human egg cells.
Long answer type question.
Describe the different types of chromosomes.
The centromere is found at the centre of the ______ chromosome.
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'.
The chromosomes are duplicated in ______.
