EVERYDAY SCIENCE

SCIENCE

ZOOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Leucocytes of frog is nucleated
A
a True
B
b False
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -It lacks nucleus in mammals (man, rabbit and rat) but it is nucleated in frog.

Detailed explanation-2: -Human and frog blood cells are the circulating cells in the blood. The most abundant type of blood cells are red blood cells. Human red blood cells lack nuclei but, the red blood cells of frogs contain nuclei.

Detailed explanation-3: -Humans don’t have a nucleus in their red blood cells, because they need more oxygen than frogs, so their red blood cells eliminated the nucleus to fit more oxygen in. Frogs can breathe under water and in air, so they don’t need much oxygen, so their red blood cells didn’t eliminate the nucleus.

Detailed explanation-4: -Nucleated RBCs are red blood cells with a nucleus. The nucleus, which contains DNA, should eject naturally as the cell develops in the bone marrow. When the nucleus has dissolved, the cell becomes more flexible.

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