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It depends which species you are.
There is the XY system (which mammals use) where it is the presence of the Y chromosome that induces male development. The Y chromosome contains genes like Sry that initiate the male developmental program. Male mammals have an X and a Y chromosome, female mammals have two X chromosomes.
However, for other species, like birds, use the so-called ZW sex chromosome system where it is actually the absence of the W chromosome that permits male development - male birds have two Z chromosomes and female birds have a W and a Z chromosome.
And then there's the X0 system, which many insects use, where two copies of an X chromosome results in a female but a single copy of an X chromosome results in a male.
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What are xx chromosomes called?
The XX chromosome is female; the XY is male. They represent the 23 pair of human chromosomes
What is the chromosome that represents the sex chromosome?
The sex chromosomes are represented by X and Y chromosomes. In humans, females have two X chromosomes (XX), while males have one X and one Y chromosome (XY). The presence of the Y chromosome determines male physical characteristics.
What is the chromosome pair XX?
Generally, since the sex determining region is on the Y chromosome, this person is male. The SRY is a gene control area that determines male sex. Female is the default body plan in humans; males are made.
What would the karyotype look like for a male where would the chromosome be?
A male's karyotype typically consists of 22 pairs of autosomal chromosomes and one pair of sex chromosomes, XY. The chromosomes would be arranged from largest to smallest, with the sex chromosomes at the end. So, the karyotype for a male would show 46 chromosomes, arranged with the XY sex chromosomes in the 23rd pair.
What correctly represents the chromosomes of a male cell?
A male cell typically contains 22 pairs of autosomes and one pair of sex chromosomes, usually XY. This gives a total of 46 chromosomes in a male cell.
Which pair of chromosomes tells your gender?
Sex chromosomes (XX = female and XY = male)
What pair of chromosomes is not homologous in a normal male karyotype?
The pair of sex chromosomes (X and Y) is not homologous in a normal male karyotype. Males have one X and one Y chromosome, while females have two X chromosomes.
What is the pair of sex chromosomes that a woman has?
XX and a male has XY
What is a pair of chromosomes carrying genes that determine whether a person is male or female?
Genetic chromosomes
One of the pair of chromosomes that determines the sex of an individual?
The 23rd pair in a karyotype shows if it will be male or female
Which is the sex chromosome of lions?
You have pair of X chromosomes in case of females. You have a pair of X and Y chromosomes in case of male. This is true for all the mammals, most probably.
What is the 23rd pair of chromosomes that differ in males and females called?
The 23rd pair of chromosomes that differ in males and females is called the sex chromosomes. In females, the 23rd pair consists of two X chromosomes (XX), while in males, it consists of one X and one Y chromosome (XY).
Whether a human is male or female is determined by his or her?
Their genotype. The human has 46 chromosomes, or two pairs of 23 chromosomes (haploid) where one pair of these chromosomes contain the genetic information that determines a human's gender. The female possesses a pair of chromosomes labelled as XX. The male possesses a pair of chromosomes labelled as XY. In the case of a male, the Y gene is inherited from the father (X from the mother) and does not contain the usual genotypes that determine an individual's appearance etc. Instead it contains a few genes that activate body functions in the male such as producing hormones in the testes, or enabling the male to possess a deeper voice etc.
What are xx chromosomes called?
The XX chromosome is female; the XY is male. They represent the 23 pair of human chromosomes
What are sex chromosomes in a human male?
Sex chromosomes in a human male include one X chromosome and one Y chromosome. The Y chromosome determines male characteristics and sperm production, while the X chromosome carries genetic information that can influence a range of traits and characteristics.
What is the chromosome that represents the sex chromosome?
The sex chromosomes are represented by X and Y chromosomes. In humans, females have two X chromosomes (XX), while males have one X and one Y chromosome (XY). The presence of the Y chromosome determines male physical characteristics.
How many chromosomes are there in sex cells and why?
22 pair of autosomes and 1 pair of sex chromosomes. A male determines the sex with XY chromosomes and the female only has YY. 23; half of the normal 46 for a cell. This is so when the male and female cells meet, they will form a normal 46-chromosome cell.
