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In genetics, a chromosome is a threadlike structure of nucleic acids and protein which is located in the nucleus of living cells, It carries the genetic information of an organism in the form of genes.
Wiki User
∙ 9y ago
Wiki User
∙ 13y agoa chromosome is made up of DNA, which is made up of genes, your chromosomes do decide how your life goes, they decide everything from gender to eye colour and are in every one of your cells, humans have 46 chromosome's, 23 pairs, chromosomes always come in pairs. Other animals have many different numbers of pairs.
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What determines the genotypes of organism?
the genotypes of their parents
How many chromosomes are in a normal human being?
Technically we have 23 chromasomes (you will never hear a paper refer to chromasome 24 or 37 etc), but we have two copies of each, bringing the total to 46. This includes the sex chromasomes.
How many chromosome' s do people have in their gametes?
Gametes are haploid cells which means they have only half the normal number of somatic cell (diploid). Somatic cells have 46 chromasomes, organised into 23 pairs, and gametes have only one chromasome from each pair.
What is a reccesive gene?
an allele that is not expressed when paired with a dominant allele. Only expressed when paired with another recessive allele.
How do the daughter cells after meiosis compare to the parent cell?
1. primary spermatocyte (dipolotid (46)) ------1st meiotic division------ produce: 2 secondary spermatocytes (haploid (23)) ------2nd meiotic division-------- Producing four spermatids (haploid (23)) so the difference is that in the begnning u have a dipoloid cell with 46 chromosomes, and in the end u wil have a haploid cell with 23 chromosomes that in the case are ready to meet the egg, and produce a zygote (diplotid, with 46 chromosomes) that wil develop to be a child.
What determines the genotypes of organism?
the genotypes of their parents
Is huntington's disease a chromosome disorder?
Yes- it is transmitted from parent to child by a chromasome.
What words have the root word chroma in it?
soul life Carabanna chromatic Chromasome
Is Down syndrome caused by single or multiple genes?
it's the duplication of the 21st chromasome
Because the gene for red-green color blindness is located on the X chromosome it is normally not possible for a?
Females are rarely colourblind because they have 2 X chromasomes. They would therefore have to have inherited the gene from both parents (X from the mother and X from the father). As males have only 1 X chromasome and there is no corresponding place on the Y chromasome for the matching allele (gene), men who inherit the gene on the X chromasome (from their mothers) are automatically colourblind.
Is it true that women have some protection from genetic disease because they carry only x chromosomes?
Yes- but only in the case of a genetic disease that is carried ONLY on the Y chromasome.
How many chromosomes are in a normal human being?
Technically we have 23 chromasomes (you will never hear a paper refer to chromasome 24 or 37 etc), but we have two copies of each, bringing the total to 46. This includes the sex chromasomes.
How does the chromosomes in a nerve cell differ from those in a sperm cell?
The sperm cell is haploid (has half as many chromasomes as the diploid nerve cell)The sperm cell can contain more mutations (depending on the age of the man, this is the basis of anticipation)The sperm cell's chromasome has undergone recombination (I'm assuming you know what that is)
Why are my six feet pubic hair long and smelly?
well 8i think this could be a hereditary condition called gingerism in which the chromasome for pube legnth is crossed over with the smell gene on the 18th chromasomje creating this effect sollution== wash, deoderize or shave ur smelly areas if this problem continues after you have done all three you have cancer of the pubism
How many chromosome' s do people have in their gametes?
Gametes are haploid cells which means they have only half the normal number of somatic cell (diploid). Somatic cells have 46 chromasomes, organised into 23 pairs, and gametes have only one chromasome from each pair.
Red-green color blindness is a human genetic disorder cause by?
Color blindness is a sex-linked genetic disorder. The reason that it is more prevalent in males is because the disorder is linked the the X-chromasome. If a male inherits an X chromosome that is defective, then they will be color blind. However, a female has two X chromosomes which means she can receive a defective chromosome and only be a carrier of the mutation. If she receives two defective x chromosomes, she will be colorblind.
Difference between the chromosomes of a person with Down syndrome and a person without Down syndrome?
An individual with Down Syndrome has the presence of all or part of an extra 21st chromosome.
