0
the human blood type is controlled by the gene 'I'. It is of 3 types Ia, Ib and i. the alleles 'Ia' and 'Ib' produce slightly different sugar polymers protruding on its surface while the 'i' doesn't produce any sugar polymers. as humans are haploid the contain 2 alleles out of the 3 I gene alleles, as the individual alleles come from the parent gamete. the alleles 'Ia' and 'Ib' are completely dominant over 'i', i.e, if alleles 'Ia' and 'i' are present then only the allele 'Ia' will be expressed, and the same for 'Ib' and 'i' happens, but when 'Ia' and 'Ib' are present together then they both express their own types, this is because of the co-dominance.
Ia + Ia = IaIa = A
Ia + Ib = IaIb = AB
Ia + i = Iai = A
Ib + Ia = IbIa = AB
Ib + Ib = IbIb = B
Ib + i = Ibi = B
i + i = ii = 0 (zero commonly known as O)
What else can I help you with?
How many genes are there for blood type?
There are three
How are the word parts poly- and genic related to the meaning of the term polygenic traits?
The word part poly- means "many," and genic refers to genes. Polygenic traits are determined by multiple genes, each contributing a small effect to the overall trait. So, the terms poly- and genic in polygenic traits indicate that multiple genes are involved in determining the trait.
Approximately how many genes do humans has?
Humans have about 20, 000 to 25,000 genes.
How many genes does a female have for a blood clotting?
Since we can never be sure that we know everything about the mechanisms behind blood clotting and there may always be just another protein involved in it, there is at the moment no definitive answer to this question. Even if we could be sure that our knowledge is comprehensive, it would still be difficult to define exactly which genes are "for blood clotting" and which aren't, as many genes contribute indirectly to blood clotting. There is however no reason for there to be a difference between males and females in this number. If you are considering only the main clotting factors (tissue factor, VII, X, prothrombin, V, VIII, IX, fibrin and XIII), these are 9 genes.
How many genes are present in human body?
There are estimated to be 26000 genes after completing the human genome project.
How many different genes control the blood type of an individule?
4
How many gene pairs contribute to the wheat grain colour?
Wheat grain color is primarily influenced by a small number of gene pairs, particularly two major genes: the P gene and the C gene, which determine whether the grain is red or white. Additionally, several minor genes also contribute to the variation in color. Overall, while the primary genes are few, the total number of gene pairs involved in determining wheat grain color can be more extensive due to the influence of these minor genes and their interactions.
How many people were involved with the blood diamond?
Since this is an illegal activity, it is not possible to estimate the population involved.
How many genes control blood type?
The genes for the others work in similar fashions, though certainly not all have three alleles. The other aspect of blood type which is of most interest to us is the Rh factor. Genetically, this is much simpler than the ABo system. It has only two alleles, one dominant (Rh-positive) and one recessive (Rh-negative).
How many genes must interact to produce a trait?
It depends on the trait. Some are Mendelian traits where there is one dominant and one recessive allele. Some traits are governed by multiple alleles, like blood groups, and some traits are governed by polygenic inheritance where several sets of genes determine the trait, like height in humans.
Why does the y chromosome not carry any alleles?
The Y chromosome is smaller than the X chromosome and contains fewer genes. It carries the genes necessary for determining male sex and some other genes, but it lacks many of the genes present on the X chromosome. This is why the Y chromosome does not carry any alleles in the same way that the X chromosome does.
What type of gene is a master control gene that directs development of body parts in specific locations in many organisms?
The gene you are referring to is called a Hox gene. Hox genes are a class of master control genes that play a critical role in determining the body plan and specifying the identity of body segments during development in many organisms.
