Plant And Animal Breeding Flashcards

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1
Q

What does plant and animal breeding do?

A

Plant and animal breeding improve characteristics to help support sustainable food production.

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2
Q

What do breeders develop?

A

• crops and animals with higher food yields.
• higher nutritional values.
• pest and disease resistance.
• ability to thrive in particular environmental conditions.

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3
Q

Where are plant field trials carried out?

A

Plant field trials are carried out in a range of environments to compare performance of different cultivars or treatments and to evaluate GM crops.

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4
Q

What account has to be taken when designing field trials?

A

Account has to be taken of the selection of treatments, number of replicates and the randomisation of treatments.

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5
Q

What is selection of treatments to ensure

A

•To ensure valid comparisons
•The number of replicates to take account of the variability within the sample.

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6
Q

What is the randomisation of treatments used to eliminate

A

Used to eliminate bias when measuring treatment effects.

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7
Q

What is inbreeding?

A

In inbreeding, selected related plants or animals are bred for several generations until the population breeds true to the desired type due to the elimination of heterozygotes.

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8
Q

Analysis of patterns…

A

Of inheritance in inbreeding using mono hybrid crosses.

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9
Q

What can be a result of inbreeding?

A

A result of inbreeding can be an increase in the frequency of individuals who are homozygous for recessive deleterious alleles.

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10
Q

What happens with individuals who are homozygous for recessive deleterious alleles?

A

These individuals will do less well at surviving to reproduce. This results in inbreeding depression.

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