MICROANATOMY

INTRODUCTION TO MICROSCOPY CELL BIOLOGY

DIFFERENTIATED CELL

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The duck-billed platypus has 52 chromosomes in its body cells. When the platypus’s body cells divide by mitosis, how many chromosomes will each daughter cell have?
A
156
B
104
C
52
D
26
Explanation: 

Detailed explanation-1: -When the platypus’s body cells divide by mitosis, how many chromosomes will each daughter cell have? produced are identical to the parent cell. So, daughter cells resulting from mitosis in a duck-billed platypus will have 52 chromosomes.

Detailed explanation-2: -Once mitosis is complete, the cell has two groups of 46 chromosomes, each enclosed with their own nuclear membrane. The cell then splits in two by a process called cytokinesis, creating two clones of the original cell, each with 46 monovalent chromosomes.

Detailed explanation-3: -A cell with 2N=8 refers to a diploid cell that contains 8 chromosomes, in which 4 chromosomes are coming from the father and 4 chromosomes are coming from the mother. Therefore, there are 4 pairs of homologous chromosomes in this cell.

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