WorksheetsH Biology - 3.2 Animal & Plant Breeding
Total questions: 12
Worksheet time: 6mins
Which of the following is not a desirable characteristic for crops?
Higher yields
Pest resistance
Disease resistance
Intolerance to drought
Which of the following is not a desirable characteristic for livestock?
Higher yields
Smaller litter sizes
Disease resistance
Environmental tolerance
During plant field trials, what is used in order to ensure a valid comparison?
A selection of treatments
A number of replicates
Randomisation of treatments
During plant field trials, what is used in order to eliminate bias?
A selection of treatments
A number of replicates
Randomisation of treatments
During plant field trials, what is used to take account of variability and increase reliability?
A selection of treatments
A number of replicates
Randomisation of treatments
Inbreeding involves the fusion of
two gametes from close relatives
two gametes from distant relatives
Inbreeding can lead to
a loss of heterozygosity
a lost of homozygosity
Inbreeding depression is the accumulation of
deleterious homozygous recessive alleles
homozygous dominant alleles
deleterious heterozygous alleles
Why are F1 hybrids not usually bred together?
F2 generation shows too little variation
F2 generation shows too much variation
A test cross involves crossing an unknown genotype with an organism which is
Unknown
Homozygous dominant
Homozygous recessive
Heterozygous
In crops, what can DNA sequencing be used for?
Identifying a gene for a desirable trait
Inserting a desired gene into a crop genome
Witchcraft
Identifying an unknown genotype
In crops, what can Recombinant DNA Technology be used for?
Identifying a gene for a desirable trait
Inserting a desired gene into a crop genome
Witchcraft
Identifying an unknown genotype
