CELL STRUCTURES AND FUNCTION
CELL DIVISION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Egg
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Skin
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Muscle
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Brain
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Detailed explanation-1: -So, if there are a total of 78 chromosomes then half of its number (half of 78) is 39 chromosomes are present in the female gamete or egg cell. So, the egg cell will have 39 numbers of chromosomes. Therefore, the answer is 39 chromosomes would be present in its egg cell.
Detailed explanation-2: -Hint: Brain cells of the human body are somatic cells. All somatic cells of the human body are diploid which means that they contain two copies of each chromosome.
Detailed explanation-3: -The presence of 78 chromosomes in cells of the dog was determined by studies of meiotic cells (Minouchi 1928) and later confirmed using cultured peripheral lymphocytes (Gustavsson 1964).
Detailed explanation-4: -A dog (Canis familiaris) has 78 diploid number of chromosomes.
Detailed explanation-5: -A diploid cell has two complete sets of chromosomes. Most cells in humans are diploid, comprising 23 chromosome pairs, so 46 chromosomes in total.