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WorksheetsAnimal Science 1 - 8.02
Total questions: 13
Worksheet time: 13mins
Compared to heritability estimates for yield grade, retail yield, and rate of gain in beef cattle, the heritability estimates for traits related to reproduction are:
about the same
lower
much higher.
slightly higher.
The first stage of mitosis is:
anaphase
telophase
prophase
metaphase
The mitochondrion of the cell converts energy stored as glucose into:
cell membrane.
deoxyribonucleic acid.
adenosine triphosphate.
cytoplasm.
Compared to heritability estimates for muscle, length, and fat traits in swine, the heritability estimates for traits related to reproduction are:
lower.
about the same.
much higher.
slightly higher.
After cell division by meiosis, the number of chromosomes each egg or sperm has is:
1/4 the original.
1/2 the original
ten times the original
twice the original
The production of ovum is called:
mitosis
oogenesis
zygote
spermatogenesis
In general, heritability estimates for beef cattle compared to swine are:
about the same
higher
much lower
slightly lower
The site of protein synthesis inside the cell is the:
ribosome
cell membrane
golgi body
centrosome
Located on chromosomes, the complex molecules that control the characteristics that are inherited from parents are called:
sperm
punneet squares
genes
eggs
The body of an animal is made up of millions of tiny structural units called:
cells
hairs
hormones
muscles
The type of cell division that increases the total number of cells and results in the animal’s growth is:
fertilization
genetic engineering
meiosis
mitosis
If the heritability estimate for fat thickness is 40%, calf weaning weight is 25%, loin eye area is 70%, and rate of gain is 50%, which trait can be improved the fastest through selective breeding?
calf weaning weight
fat thickness
loin eye area
rate of gain
The part of an animal cell that gives the cell the ability to grow, to digest food, and to divide is the:
cell wall
cytoplasm
gene
nucleus
