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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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Genetics with Mitosis and Meiosis

hi i need major help with two questions please please! 1. i need to draw a diploid organism that has a chromosome complement of 2n=6 at mitosis anaphase, meiosis anaphase 1 and meiosis anaphase 2. On the diagram i need to LABEL on each chromosome to show one ...

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by 1fh2
Tue Jan 29, 2013 1:23 am
 
Forum: Genetics
Topic: Genetics with Mitosis and Meiosis
Replies: 2
Views: 983

mRNA transcripts, cis/trans-acting questions

... mutation in GAL3, which interacts with GAL80 to de-repress GAL4 when galactose is present (“GAL3”). NOTE: Yeast are normally haploid, but the diploid cells resulting from mating can persist as diploid colonies until induced to undergo meiosis. ______ a. When this mutant is crossed to a known ...

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by animus31
Fri Nov 09, 2012 11:58 am
 
Forum: Genetics
Topic: mRNA transcripts, cis/trans-acting questions
Replies: 0
Views: 495

Re:

... is a version of a gene. Diploids that have two identical versions are homozygous. Diploids that have two different versions are heterozygous. A diploid individual can have a maximum of two alleles of a gene, one from the mother and one from the father. Within a population, though, a gene can ...

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by wbla3335
Thu Oct 04, 2012 6:54 am
 
Forum: Genetics
Topic: allele or gene?????
Replies: 7
Views: 23526

Bees

You are missing the point. 1. Females are diploid. 2. Males are haploid. 3. Males carry 1/2 of mother's genome AFTER it recombines and, thus, NOT the same. 4. Workers that share 75% of their genome identity are females. 50% comes from mother and ...

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by Cat
Sun Sep 23, 2012 4:23 pm
 
Forum: General Discussion
Topic: Bees
Replies: 3
Views: 591

Two questions

1. during mitosis it doesn't matter, whether an organism has 3 or 50 chromosomes, whether is it diploid or haploid 2. alleles are different versions of one gene, i.e. located on single locus (physical part of chromosome)

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by JackBean
Tue Sep 11, 2012 10:16 am
 
Forum: Genetics
Topic: Two questions
Replies: 5
Views: 1133
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