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What word means carry genes that determine the sex of offspring?
the answer is DNA chromosomes.
An expressed gene is one that?
is transcribed into RNA. Promoters (I think that's what you meant, right?) don't function as genes; they stand as a signal for RNA polymerase to begin transcription of the actual gene, which begins about 25 base pairs downstream of the promoter region in eukaryotic DNA. Expressed genes DO code for proteins, but not all protein-coding genes are expressed. For example, the cells in your heart contain genes that code for proteins needed only in your liver. While those genes definitely code for proteins, they're not expressed. Expressed genes (and non-expressed genes, Ke$ha Looks like a man, for that matter) are made of DNA, not mRNA.
What does R W Y G stand for on a thermostat and where do the wires go?
R is the 24 volt supply W controls the heat relay or valve Y controls the cooling contactor G controls the fan relay
Why do sex-linked traits follow different patterns for inheritance than other traits?
Short Answer: There are just over a thousand genes on the X chromosome and about 26 on the Y. Of the 26 on the Y, 9 relate to sperm and one (SRY) relates to male anatomy, the others involved in general tasks. The fact that there are a hundred times more genes on the X chromosome means that traits related to the X, and variations in those traits, are far far more common. Sex-linked traits are those that can only be passed along from the father and not the mother or from the mother and not the father. Obviously, males do carry and pass on sex-linked traits, just not very many. Gender can only be passed along from the father, along with genes related to sperm. Females pass on to the male offspring a larger number of traits, (such as some color blindness and male pattern baldness) which have no counterpart in the Y chromosome. More: Males have an X and a Y chromosome and females have two X chromosomes. Because the Y chromosome is smaller than the X with far fewer genes, there are genes carried only on the X and only gotten from the mother. That does not mean that all males have Y chromosomes that are the same. Overwhelmingly though, the absence of the set of genes on the Y chromosome results in the corresponding genes on the X chromosome being expressed, in particular all of the X-linked disorders of a gene of an X chromosome in a male do not have a second X gene that can be expressed to compensate. Thus, there are a set of sex-linked traits that can only come from the mother. (Color blindness and male pattern baldness are the two most discussed examples.) A male offspring (son) has the same Y chromosome as the father and hence any traits influenced by that chromosome. A female offspring (daughter) has the same X chromosome as the father and hence any traits influenced by that chromosome. A recessive gene on the X from the father will not usually be expressed in a daughter, but a dominant gene on the X from the father will be expressed in the daughter. For a female to inherit a trait associated with an X-chromosome recessive gene, there must be two copies, one from each parent. Aside: The issue of gender-connected inherited traits has much more complexity than this simple discussion can address. For example, not all of the so-called male characteristics are carried on the male (Y) chromosome. The expression of genes on other chromosomes, from both the mother and father, is influenced by genes on the Y chromosome or simply by the absence of two X chromosomes. The reader should investigate further. Caveat: This discussion applies to humans and other mammals with the XX/XY sex determination system. See related links. Fun Fact: A woman discovered that the Y chromosome was male. While studying worms, in 1905, Nettie Stevens at Bryn Mawr College identified the Y chromosome as the determining factor in gender.
How do dominant and recessive genes work?
explain how dominant genes work
What are the genes carries on the x and y chromosomes called?
The genes carried on the X chromosome are called X-linked genes, while the genes carried on the Y chromosome are called Y-linked genes. These genes play a role in determining various traits and characteristics in individuals.
The genes on the x and y chromosomes are called what?
The genes carried on the X and Y chromosomes are called your "sex chromosomes".
What carry genes that determine the sex of offspring?
Men do they are the carriers of the X and Y chromosome. Girls only have X chromosomes. Two X chromosomes mean it will be a girl and a X and a Y mean it will be a boy.
Genes that are carried on the X or the Y chromosome?
Sex-Linked genes.
What carry genes that determine sex of offspring?
Men do they are the carriers of the X and Y chromosome. Girls only have X chromosomes. Two X chromosomes mean it will be a girl and a X and a Y mean it will be a boy.
What carries genes that determine the sex offspring?
Men do they are the carriers of the X and Y chromosome. Girls only have X chromosomes. Two X chromosomes mean it will be a girl and a X and a Y mean it will be a boy.
Do boys and girls inherit the same number of genes from their mother?
yes.the number may be same but the chromosome factor X & Y are different for a boy and a girl
Do boys and girls inherit same number of genes from their mother?
yes.the number may be same but the chromosome factor X & Y are different for a boy and a girl
Genes found on the x and y chromosomes are often called?
sex-linked genes
Which chromosomes carries the fewest numbers of genes?
The y chromosome, which only contains a few hundred genes.
What does the g in genes stand for?
Guanine
What are sex linked genes on?
Sex-linked genes are on the X and/or Y chromosomes.
