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In humans what are the chromosome pairs 1 through 22 called?
Chromosome pair 23 in humans is the pair of sex chromosomes. In females, both sex chromosomes are the X sex chromosome, and in human males one sex chromosome is the X and the other is the Y chromosome.
What if there were two X chromosomes at chromosome pair 23?
That person is a girl.
What does the 23 pair chromosome determine?
The twenty-third pair of chromosome determines gender. Males are distinguished of having an X and a Y. Females are distinguished to have a X with another X.
What happened to the 24th chromosome pair present in other Primates when our ancestors became Human like as Humans have only 23 chromosome pairs?
Many scientists think the 24th chromosome fused together and that is why humans have 23.
What are the name of 23 chromosomes in human body?
No, there are 46 chromosomes in one cell. A gamete, or sex cell, has 23 chromosomes because during fertilization, the female and male gametes (egg and sperm, respectively) come together to form a new cell with 46 chromosomes
Which pair of chromesomes determines gender?
Chromosome pair 23 determines the gender of a human. These chromosomes will either be two X's for females, or an X and a Y for males.
What is the chromosome number of gamete?
They have half the number of the somatic (parent) cell. So if a parent cell had 46 chromosomes in its nucleus, then its gamete would have 23(one chromosome from each pair).
What percent of a parents genes does an egg or sperm cell have?
Humans have 23 pairs of chromosomes. A pair is made up of one chromosome from the egg, and one chromosome from the sperm. That makes it 50-50%.
The exceptions to the rule that every chromosome is part if a homologous pair are the?
The exceptions to the rule that every chromosome is part of a homologous pair are the gametes. Gametes are eggs and sperm, and each cell has only 23 chromosomes, which form pairs in the zygote after fertilization.
Do human body cells have 8 chromosome?
No, they have 46 chromosomes. (23 pairs) 22 pairs of autosomes 1 pair of sex chromosomes
What does the 23rd pair of chromosomes look like for girls and are they the same for boys?
girls have XX as their 23 pair and guys have XY....thats what determines if you are a male or female, the X or the Y and you get that chromosome from your father.
What chromosome pair is not given a number?
The sex chromosomes, X and Y, are not given a number. They determine an individual's sex and are not part of the standard numbered pairs of autosomes.
