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Why do traits that are controlled by genes on the same chromosome not always appear in the expected ratio in offspring?
I think this has something to do with "crossing over," but I do not remember the details. All I remember is that the allelle of one chromosome may overlap and switch with the allelle of another chromosome, which results in unexpected ratios of the genotypes and phenotypes of traits represented by genes that would normally be found on the same chromosome.
What else can I help you with?
Is the sex offspring is determined by the chromosome the female parent gives?
Yes, the sex of the offspring is determined by the chromosomes contributed by the parents. The female parent always gives an X chromosome, while the male parent can contribute either an X or a Y chromosome, determining whether the offspring will be male (XY) or female (XX).
Who is responsible for sex determination in humans the male or the female parent?
The sex determination in humans is determined by the male parent through the presence of the X or Y chromosome in the sperm. The female parent always contributes an X chromosome. If the sperm carries an X chromosome, the resulting offspring will be female (XX), and if it carries a Y chromosome, the offspring will be male (XY).
Whose chromosomes determine the sex of offspring in humans?
The males chromosomes determine the gender of the baby. Women have an XX chromosome and men have an XY chromosome. So women can only give an X chromosome, but men can give either/or.The chromosomes of the father make the final determination; the child either gets a X from the mother and either an X from the father which makes a girl, or an X from the mother and a Y from the father, which makes a boy.Jamiana:The Father's(it's Y though)
How is sex in offspring determined?
the father does. you see a woman genes are both y and men's genes have an x and a y if the father gives a y it is going to be a girl if he gives it and x it will be a boy. that is what determines sex of an offspring also if you already have some kids that will give you a better guess of what sex the offspring is.
For a codominant traiit do the offspring of identical parents always look like the parent why?
No, the offspring of identical parents would not always look like the parents because everyone has dominant and recessive traits, where the recessive traits do not show but is still in DNA. That said, recessive traits not shown in parents can be passed on as dominant traits to offspring - making offspring not always identical to its parents. (this is also called genetic variation)
What kind of chromosome do females transmit of offspring?
Female transmit 23 chromosomes to the offspring. She has that unique chromosome called as X chromosome. This is transmitted to the offspring. From male you get either X or Y chromosome. From XX chromosome you get female child. From XY chromosome you get male child.
Which gamete determines the gender of the offspring in homosapians?
The sperm gamete determines the gender of the offspring in humans. Sperm carries either an X or a Y sex chromosome, while the egg always contains an X chromosome. If a sperm with an X chromosome fertilizes the egg, the offspring will be female (XX). If a sperm with a Y chromosome fertilizes the egg, the offspring will be male (XY).
Why does the sperm determine the sex of the offspring not the egg?
The sex of offspring is determined by the sperm because sperm carries either an X or Y chromosome, while eggs always carry an X chromosome. If a sperm carrying an X chromosome fertilizes the egg, it results in a female offspring (XX), while a sperm carrying a Y chromosome leads to a male offspring (XY).
What kind of chromosomes do male transmit to offspring?
Males transmit one set of sex chromosomes to their offspring. This includes either an X or a Y chromosome, which determines the sex of the child. Females always contribute an X chromosome.
Is the sex of the offspring of a cow determined by the egg or sperm?
The sex of the offspring is always determined by the sperm: this is the same in pretty well all animal life, including human reproduction. The gamete in a cow always carries the X chromosome. The gametes in a bull carry both X and Y chromosomes, which mean that if the sperm with an X chromosome fuses with the gamete of the cow, the offspring will be female. If the sperm carries a Y chromosome and fuses to the female gamete of the cow, then the offspring will be male.
Is the sex offspring is determined by the chromosome the female parent gives?
Yes, the sex of the offspring is determined by the chromosomes contributed by the parents. The female parent always gives an X chromosome, while the male parent can contribute either an X or a Y chromosome, determining whether the offspring will be male (XY) or female (XX).
Who is responsible for sex determination in humans the male or the female parent?
The sex determination in humans is determined by the male parent through the presence of the X or Y chromosome in the sperm. The female parent always contributes an X chromosome. If the sperm carries an X chromosome, the resulting offspring will be female (XX), and if it carries a Y chromosome, the offspring will be male (XY).
Whose chromosomes determine the sex of offspring in humans?
The males chromosomes determine the gender of the baby. Women have an XX chromosome and men have an XY chromosome. So women can only give an X chromosome, but men can give either/or.The chromosomes of the father make the final determination; the child either gets a X from the mother and either an X from the father which makes a girl, or an X from the mother and a Y from the father, which makes a boy.Jamiana:The Father's(it's Y though)
Which gamete has the chromosome that determines a person's sex?
The sperm gamete carries either an X or a Y chromosome, which determines the sex of the offspring. If the sperm carries an X chromosome, the offspring will be female, while if it carries a Y chromosome, the offspring will be male.
Is the sex of a human offspring determined by the mother fathe r or neither?
Technically, the sex is determined by the father. The egg is always an x chromosome. The sperm can be either an x or a y chromosome. An xx makes a female, and an xy makes a male.
Which gamete determines the gender of the young?
In humans females are homogametic and males are heterogametic. It is the male biological parent who contributes the sex chromosome that determines the sex of any child.Human females are XX and all their ova carry an X chromosome. Females always give their children an X chromosome.Human males are XY and half their spermatozoa carry an X chromosome and half carry a Y chromosome. Depending on the sex chromosome in its biological father's spermatozoon, a child receives an X or a Y chromosome from its biological father.If a child receives an X chromosome from its father she will be XX and a girl. If a child receives a Y chromosome from its father he will be XY and a boy.
How do you become a boy or girl?
Sex is determined by a pair of sex chromosomes. Males have XY chromosomes and females have XX chromosomes. In the fertilization stage where the sperm combines with the egg, the sex of the offspring depends on whether the sperm carries a X or Y chromosome. The ovum always carries a X chromosome because females only have X chromosomes. So, if the sperm carries the X chromosome, the offspring will have XX chromosome and becomes a girl. If it carries the Y, the baby becomes a boy. X (sperm) + X (egg) = XX (female) Y (sperm) + X (egg) = XY (male)
