biotechlearn.org.nz

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Definitions (695)

1

7   9

asexual propagation


Reproduction without combining gametes and can result in the production of many plants that are genetically identical.
Source: biotechlearn.org.nz

2

1   2

nobel prize


An annual award for outstanding achievements in either physics, chemistry, medicine, literature, economics or the promotion of peace.
Source: biotechlearn.org.nz

3

1   2

silage


High-moisture feed for livestock that is made from crops fermented anaerobically (without air) and can be stored over winter.
Source: biotechlearn.org.nz

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1   3

supernatant


The liquid layer that remains after a solution is spun in a centrifuge.
Source: biotechlearn.org.nz

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0   1

backcrossing


A breeding method for introgressing a desirable trait into an elite breeding population. In traditional backcrossing, successive generations of apples with the trait of interest are crossed with the same high-quality parent. In modified backcrossing, a different high-quality parent is used at each generation.
Source: biotechlearn.org.nz

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bacteria


Single-celled microorganisms that lack a nucleus.
Source: biotechlearn.org.nz

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bacterial artificial chromosome


A bacterial vector for cloning DNA. BACs can accommodate longer stretches of DNA than plasmid vectors.
Source: biotechlearn.org.nz

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base


DNA is made up of four bases: adenine (A), cytosine (C), guanine (G) and thymine (T). In RNA, the base uracil (U) replaces thymine.
Source: biotechlearn.org.nz

9

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base pairs


The unit of double-stranded DNA. Bases pair up so that A joins with T and C joins with G.
Source: biotechlearn.org.nz

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beta-glucans


A type of sugar molecule.
Source: biotechlearn.org.nz


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