0
What else can I help you with?
In humans a male has?
One X chromosome and one Y chromosome, which determines male sex characteristics.
Where does each chromosome in a pair of homologous chromosomes come from?
Each chromosome in a pair of homologous chromosomes is inherited from one parent. One chromosome comes from the mother (maternal) and the other from the father (paternal).
What are sex chromosomes in a human male?
We call these sex chromosomes. Whether you are a male or female depends on the presence or absence of certain chromosomes. The sex chromosomes are the X chromosome and the Y chromosome. If you have two XX, you will show female characteristics and If you have XY you will show male characteristics.
What sex chromosome does a male have?
The male sex chromosome is XY, and females are XX. The X comes from the female, and an X or a Y from the male. When they meet, that determines whether the baby will be a boy or a girl.
Which homologous chromosome pair in humans is the only one that is not identical?
The only homologous chromosome pair in humans that is not identical is the sex chromosomes, specifically the X and Y chromosomes.
What characteristic is used to give a chromosome pair a number?
its usually the size of it and the information that is in the pair
Is it true or false that the 23rd chromosome pair determines the gender of a child?
TRUE.
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 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 chromosome has to be present for a mother to have a male child?
A mother needs to contribute an X chromosome to her child for them to be male. The father contributes a Y chromosome, resulting in an XY chromosome pair which determines a male child.
How is gender inheritance?
Gender is inherited from your parent's 23rd chromosome. The (XX) chromosome pair is for a female and the (XY) chromosome pair is for a male. You get a (X) chromosome from your mother because she has two (x)'s. Her 23rd chromosome is (XX). It's your father's chromosome that determines what gender you are. His 23rd chromosomes were (XY). If you get an (X) from him, you become a girl. If you get a (Y) chromosome from him, you become a boy. This all happens when your mother's egg is fertilized.
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 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 sex of offspring is determined by a chromosome pair?
The sex of offspring is determined by the combination of sex chromosomes inherited from the parents. In humans, females have two X chromosomes (XX) and males have one X and one Y chromosome (XY). The presence of a Y chromosome determines the development of male characteristics.
What is achromosome?
A chromosome is a long DNA molecule containing genes and other regulatory elements. Each chromosome exists as a pair within the nucleus of a cell, with one chromosome inherited from each parent. Chromosomes carry the genetic information that determines an individual's traits and characteristics.
If a human gamete with an extra chromosome participated in fertilization with a normal human gamete what condition results?
A trisomy. Trisomies are usually fatal in all chromosome pairs except 5, 13, 21 (these cause Down syndrome), and 23 (The chromosome pair that determines gender)
What is the chromosome pair for a boy?
A boy has one X chromosome from the mother and one Y chromosome from the father, making his chromosome pair for gender determination XY.
