Exam Flashcards
Today in the US only a small percentage of the population is actively involved in food production
True
in the US we spend nearly 50% of our income on food
False
The Genotype of an animal is determined at conception
True
All animals have the same number of chromosome pairs
False
In mammals, sex of the offspring is determined by the female or dam
False
Highly heritable traits are greatly influenced by the environment
False
As a breeder selects for more traits, the progress they make in any one trait is slower
True
Traits that are controlled by one pair of genes are harder to change than those controlled by many pairs
False
Qualitative traits are controlled by more genes than quantitative traits
False
Meiosis reduces chromosome number in sex cells
True
All animals are a product of their genetics and environment
True
Mutations frequently occur and are generally desirable
False
The stronger the uterine attachment the longer the post partum interval
True
Accessory glands in the male contribute volume to the semen
True
An animal with both testes in the body and undescended into the scrotum would be sterile
True
The estrous cycle can be lengthened by feeding or giving the female prostaglandin
False
A free martin is a female born as a twin with a male and is sterile
True
The scrotum of a male raises and lowers to adjust temperature of the testes
True
the oocyte is one of the smallest cells in the body and is mobile
False
Chromosomes are located in the nucleus
True
An example of the gametes are epithelial cells
False
A dominant gene in a heterozygous pair hides the effect of the allele
True
