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Dictionary » D » Diploid

Diploid

Definition

noun

(Science: genetics, cell biology)

A cell or an organism consisting of two sets of chromosomes: usually, one set from the mother and another set from the father. In a diploid state the haploid number is doubled, thus, this condition is also known as 2n.


adjective

Of or pertaining to a diploid, that is a cell or an organism with two sets of chromosomes.


Supplement

An example of a cell in a diploid state is a somatic cell. In humans, the somatic cells typically contain 46 chromosomes in contrast to human haploid gametes (egg and sperm cells) that have only 23 chromosomes.


Word origin: from Greek diplous, double + -OID
Related forms: diploidic (adjective), diploidy (noun)
Compare: polyploid, haploid
See also: chromosomes, ploidy


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what is gametes in DNA?

(In humans) a gamete is a cell that has only one set of chromosome (haploid cell) instead of the common two sets (diploid cells), which makes it possible for this cell to fuse with another gamete in fertilization to form the first diploid cell of the embryo-to-be - i.e. gametes ...

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by biohazard
Tue Aug 25, 2009 6:08 am
 
Forum: Genetics
Topic: what is gametes in DNA?
Replies: 3
Views: 45

Why not hundreds of different sexes, why only two ?

And there are many of them, in fungi. Diploid duplication mutations probably "set up" the possibility of two-contributor sexual exchange, and triploidy is a harder thing to survive. Where there are two genders, the two have developed ...

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by Darby
Sun Aug 16, 2009 8:44 pm
 
Forum: Evolution
Topic: Why not hundreds of different sexes, why only two ?
Replies: 2
Views: 94

A question from Cloning

Hmmh, the haploid fusion part seems to be a bit more complicated. Haploid somatic cells are routinely used to produce diploid hybrids at least in plants and fungi, but with higher animals it seems to become tricky. Apparently this has been done at least with mice when scientists have ...

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by biohazard
Thu Jul 16, 2009 7:27 am
 
Forum: Cell Biology
Topic: A question from Cloning
Replies: 16
Views: 491

Questions about Biology's term

Chromosome: Is a structure composed of DNA which carries genetic information. Homologous Chromosome: Chromosomes in a diploid organism which contain the same sequence of genes but are derived from different parents, and which pair with each other at meiosis Chromatin: The complex ...

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by Jesse2504
Tue Jun 23, 2009 6:25 am
 
Forum: General Discussion
Topic: Questions about Biology's term
Replies: 6
Views: 222

Can you use mtDNA to...

Sorry for the double post :( Uh the frog is Diploid, and the eggs that i got are all from one state... beyond that i dont really know anything else about them, fish and Game claims that they are Chiricahuan frog eggs... no idea if there related... ...

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by Swordy
Thu Apr 30, 2009 5:34 pm
 
Forum: Genetics
Topic: Can you use mtDNA to...
Replies: 12
Views: 1478
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