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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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Results from our forum


Aneuploidy threshold

... ploidy value. My question is this: what 'threshold' ploidy value would be considered aneuploidy? For example, I know that a value of 2 means diploid, but is a value of 2.3, 2.4 or even 2.6 considered aneuploid? Does anyone of links to relevant/useful papers that might define such a threshold? ...

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by kn83
Mon Mar 16, 2015 11:38 pm
 
Forum: Cell Biology
Topic: Aneuploidy threshold
Replies: 0
Views: 49

Yeast

I need help with this please? Provide a genetic explain for why when diploid yeast cells are sporulated (undergo meiosis), the resulting haploids were ALL tolerant to ethanol??? :D

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by leroymelo
Fri Nov 14, 2014 9:08 pm
 
Forum: General Discussion
Topic: Yeast
Replies: 0
Views: 467

Re: Totipotent Stem Cell From Molecular Components

... ones in the cell at human body conditions and leave it there for 1 week where it replicates at a pace of once every 8 2/3 hours. I then separate a diploid set from the rest of the DNA and use the rest of the DNA for PCR. I form the histone proteins at the same time that I am forming the nucleus ...

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by caters
Fri Aug 01, 2014 1:42 am
 
Forum: Cell Biology
Topic: Totipotent Stem Cell From Molecular Components
Replies: 2
Views: 6843

genetic

) A diploid cell contains three pairs of homologous chromosomes designated C1 and C2, M1 and M2, and S1 and S2. No crossing over occurs. a. What combination(s) of chromosomes are possible in daughter cells following mitosis? ...

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by lachatausa
Fri Mar 21, 2014 2:55 am
 
Forum: Genetics
Topic: genetic
Replies: 1
Views: 4164

Need some help segregation - independent assortment!!!

All diploid organisms have a pair of alleles for a particular trait. These alleles are present on homologous chromosomes. Segregation means that these alleles are separated during gamete formation and there is only one allele ...

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by supersapien
Fri Nov 29, 2013 2:36 am
 
Forum: Genetics
Topic: Need some help segregation - independent assortment!!!
Replies: 1
Views: 4119
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