A white cow was mated with a red cow, and they had an offspring who was roan – the calf had an even mixture of white hairs and red hairs covering her body. What is the most likely explanation of the inheritance of the roan coat?
A. red is dominant and white is recessive
B. red and white are codominant
C. incomplete dominance
D. X-linked dominance
E. pleiotropy
B. red and white are codominant
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When erythrocytes are old or die, how are they removed from the blood stream?
1.The liver filters them out. 2.They break into small particles and are cleared out by the kidneys. 3.They dissolve into liquid and circulate in that form in the blood. 4.They are attacked by macrophages and removed. 5.They remain intact, dead cells and are filtered out by the kidneys.
Among the array of species that make up a community, not all are equally abundant
Indicate whether the statement is true or false
What percentage of insects species are phytophagous (feed on plants)?
a. About 10% b. About 20% c. About 30% d. About 50%
Why is it an advantage for animals that migrate long distances to store energy as lipids rather than carbohydrates?
What will be an ideal response?