Dictionary » D » Determinant



1. That which serves to determine; that which causes determination.

2. (Science: mathematics) The sum of a series of products of several numbers, these products being formed according to certain specified laws; thus, the determinant of the nine numbers. Is a b' c a b c _ a b c] a b c _ a b' c. The determinant is written by placing the numbers from which it is formed in a square between two vertical lines. The theory of determinants forms a very important branch of modern mathematics.

3. (Science: logic) a mark or attribute, attached to the subject or predicate, narrowing the extent of both, but rendering them more definite and precise.

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Re: Theories - Origin of Life

... now confer antibiotic resistance may have served a completely different function in the past. "These examples illustrate the concept that a determinant which contributes to the resistance of human pathogens to antibiotics can be involved in central metabolic processes of environmental bacteria ...

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by Luxorien
Sun Sep 23, 2012 6:57 am
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 562
Views: 929033

Re: What is the positive control and negative control?

Can you elaborate on why the level of lactic acid bacteria determies shelf life? I've read that pH is a primary determinant as maintenance of a low pH inhibits growth of potential spoilage bacteria and that pH is established and mainained by the lactic bacteria present. For controls, ...

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by JorgeLobo
Sun Feb 26, 2012 5:10 pm
Forum: Microbiology
Topic: What is the positive control and negative control?
Replies: 9
Views: 4438

some bio multiple choice questions

... e. vernalized. Answer said it was E. but can't A also be right? 2. For plants that flower in response to photoperiodic stimuli, the most critical determinant in the light–dark cycle is the a. temperature. b. length of the dark period for short-day plants and length of the light period for long-day ...

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by jjkwest1
Fri Feb 10, 2012 8:00 am
Forum: Botany Discussion
Topic: some bio multiple choice questions
Replies: 4
Views: 4987


... diastolic function. However, the mechanisms causing this left ventricular (LV) remodeling remain incompletely defined. We hypothesized that one determinant of age-dependent remodeling is a change in the extent to which newly synthesized procollagen is processed into mature collagen fibrils. ...

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by HerrBiologie
Sun Oct 30, 2011 9:12 am
Forum: Molecular Biology
Topic: hydroxyproline
Replies: 2
Views: 2028

Sexual selection in plants

... the alleles that control the mechanism whether 2 plants are able to cross and produce fertile progeny. For those incompatible, the pollen (male determinant) that fall on stigma (female determinant) will not germinate; pollen tube will not form; fertilization will not occur, etc... I will suggest ...

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by magicsiew
Fri Dec 10, 2010 8:20 pm
Forum: Botany Discussion
Topic: Sexual selection in plants
Replies: 7
Views: 3290
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