Question

define sex chromosome​

Answer 1

Answer:

• The Gender of a baby is determined by the Chromosomes in the Gamets to form Zygote
• The nucleus of each cell contains 23 pairs of chromosomes, of which, the last pair are called sex chromosomes
• Sex chromosomes are of 2 types, namely, X and Y chromosomes
• Usually, a Female has 2 X chromosomes (XX) and Male has 1 X and 1 Y chromosomes (XY) in their cells
• The Gamers (Sperm and Ova) contain only one set of chromosomes
• Ovum contains 1 X chromosome while Sperm contains either an X or Y chromosomes

Answer 2

Answer:

Explanation:

all human being has 23 pairs of chromosomes in the nuclie of the cell . two chromosomes out of these chromosomess are x and y

Answer 3

Answer:

Explanation:

all human being has 23 pairs of chromosomes in the nuclie of the cell . two chromosomes out of these chromosomess are x and y