Mendelian Genetics [6F. R]:Question 1
In cocker spaniels the allele for a black coat color (B) is dominant
over the allele for a brown coat color (b). If a heterozygous black
cocker spaniel is crossed with a brown cocker spaniel, what fraction
of their offspring would be expected to have a brown coat?

Which of the following examples can cause gene flow between populations? a.an increase in predators to a population of zebra b.a volcanic eruption that kills half of a population of mice c.bird droppings that contain seeds from a different location d.a person that sprays a toxin on a group of mosquitoes

What are the steps of how energy is transformed in plant cells?

Plz will mark! the diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?