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WorksheetsGenetics & Reproduction
Total questions: 17
Worksheet time: 6mins
Crossing over is when....
chromosomes exchange genetic information
chromosomes split during mitosis
egg is fertilized by the sperm
alleles segregate at gamete formation
Which is heterozygous for both traits?
Tt pp
TT Pp
Tt PP
Tt Pp
Naturally polled condition happens in which cattle breed?
Shorthorn
Jersey
Holstein
Aberdeen Angus
The outward appearance of an organism is what?
Genotype
Phenotype
Hybrid
Hybrid Vigor
Increased productivity displayed by offspring of genetically different parents is know as.....
Crossing over
Cross breeding
Hybrid Vigor
Inbreeding
When two equally dominant alleles give a mixed/blend trait in the phenotype it is known as what?
Co-dominance
Multiple alleles
Mutation
Incomplete dominance
When two equally dominant alleles are both expressed equally in the phenotype its know as...
Co-dominance
Continuous variation
Incomplete dominance
Which is an example of continuous variation?
Coat color
Eye color
Milk yield
Blood type
Mopping up is what?
Using stock bull after AI
Using sexed semen in AI
Using stock bull instead of AI
Nothing related to AI
Using hormones to produce more than normal quantities of eggs in an animal is known as..
Synchronization
Sponging
Super Ovulation
Oestrous
Hormone responsible for the production of testosterone in bulls?
Testosterone
FSH
LH
Hormone found in both males and females?
FSH
Oxytocin
Progesterone
Testosterone
Which is a function of oxytocin?
Milk production
Inhibition of lactation
Development of sex characteristics
Milk let down
Which hormone inhibits milk production?
Oxytocin
Prolactin
Oestrogen
Progesterone
Length of gestation in sheep?
9.5 months
8 months
5 months
3.5 months
Sheep are...
polyoestrous
seasonally polyoestrous
monoestrous
dioestrous
Bulls sperm is stored where?
Testes
Sperm duct
Prostate gland
Epididymis
