one pair among the 23 pairs of human chromosomes; the X and Y chromosomes.
X and Y-chromosomes - Chromosomes involved in sex determination. Females have two X chromosomes, males have one X and one Y-chromosome. The Y-chromosome is thus only found in males.
Pair of chromosomes that determines sex: XX in the normal female, XY in the normal male. (43)
The 23rd pair of chromosomes are the sex chromosomes. There are two sorts, an X and a Y. Females have two X chromosomes (XX) and males have one X and one Y chromosome (XY). Sometimes babies are found to have an extra sex chromosome or one missing. The effect of this on the mental and physical condition of the baby is very hard to predict. It is very important to receive Genetic Counselling in order to receive accurate and up to date information.
The two chromosome types, named the X and the Y, that determine the sex of the dog. Females have two X chromosomes, males have one X and one Y. The genes on the X chromosome are different from the genes on the Y chromosome.
Chromosomes that determine gender of the individual. In mammals, females are XX and males are XY, therefore gender of offspring is determined by the male.
The X or Y chromosome in human beings that determines the sex of an individual. Females have two X chromosomes in diploid cells; males have an X and a Y chromosome.
chromosomes that determine an organism's sex. Human females have two X chromosomes; males have one X chromosome and one Y chromosome.
The X and Y chromosomes. Normally males have one X and one Y and females have two X's. Sex chromossomes make up the 23rd pair, different from the other 22 pairs that are the autosomal DNA.
One of the two chromosomes that specify the sex of an organism. Humans have two kinds of sex chromosomes, one called the X and the other Y. Normal females possess two X chromosomes and normal males possess one X and one Y.
For those species with two sexes, these chromosomes determine the sex of the organism.
Human beings have 23 pairs of chromosomes. The two chromosomes in the 23rd pair are called the "sex chromosomes" (because they determine gender). A child inherits one sex chromosome from the mother (always an X chromosome) and one sex chromosome from the father (either and "X" or a "Y"). If the sex chromosome from the father is an "X", the child becomes a girl. If the sex chromosome from the father is an "Y", the child becomes a boy.
Special chromosomes involved in determining the sex of an animal. In the dog, females possess two X chromosomes and males possess one X and one Y chromosome.
in eukaryotic cells a chromosome that is represented differently in the two sexes. Cells from females contain XX chromosomes, while cells from males contain XY chromosomes.
Those chromosomes tht determine gender, the X and Y chromosomes. pasticity Tendency to have involuntary muscle contractions. The result fo upper motor neuron lesion.
The DNA molecules or the chromosomes that determine the sex of an organism.
The chromosomes that determine the sex of an organism. In humans, females have two X chromosomes, and males have one X chromosome and one Y chromosome. Chromosome that determines the gender (sex) of the individual. Human males have a large X and a smaller Y sex chromosomes, while human females have two X sex chromosomes. PICTURE
The chromosomes that determine the sex of organisms which exhibit sexual differentiation (e.g., humans, most animals, some higher plants). In humans, the X chromosome determines female genetic traits; the Y chromosome determines male traits. Since a single chromosome is inherited from each parent during reproduction, XX is female, and XY is male.
The chromosomes that determine the sex of an individual - designated X and Y chromosomes in humans. Females have two X chromosomes and males have one X and one Y chromosome.
the 23rd pair of human chromosomes which determine gender; females have two X chromosomes; males have one X and one Y chromosome.
These chromosomes, called X and Y in humans, are the chromosomes that carry the genetic information that controls sex determination. Not all of the information needed for sex development is on these chromosomes, but the vital regulatory genes that initiate the sequence of events that leads to sex development are on these chromosomes. The human female has 44 autosomes and XX, the human male has 44 autosomes and XY.
Chromosomes that determine the sex of an animal. Males have one X chromosome and one Y. Females have two X chromosomes. Other chromosomes are called autosomes.
One of the 23 pairs of chromosomes in each cell, denoted as XX or XY, that determines whether the organism will be a female or male.
The X and Y chromosomes in human beings that determine the sex of an individual. Females have two X chromosomes; males have one X and one Y. Single strand: One half of a DNA double helix.
The chromosomes involved in sex determination (X and Y in humans).
chromosomes that determine sex (XY and XX)
The X and Y chromosomes determine the sex of an individual. Females have two X chromosomes: males have an X and a Y chromosome.
Chromosomes that control the sex of an animal. Bitches have two x chromosomes; males have one X and one Y chromosome.
Chromosomes that are different in the two sexes and involved in sex determination.