Agene which is expressed in a heterozygous individual
a) dominant.
b)
recessive.
c) homozygous. d) centromere.

22. which of the following symbols represents homozygous?
a) dd
b) dd
c) dd
d) dd and dd

23. which of the following symbols represents a hybrid?
a) ff
b)
ff
c) ff
d) ff and ff

The gene that causes sickle-cell disease is present in a higher percentage of residents of sub-saharan africa than among those of african descent living in the united states. even though this gene causes sickle-cell disease, it also provides some protection from malaria, a serious disease that is widespread in sub-saharan africa but absent in the united states. discuss an evolutionary process that could account for the different percentages of the sickle-cell gene among residents of the two regions.

Lola needs to sign 6 invitations. using stopwatch that measures time to tenths of a second, it takes lola 5.3 seconds to sign her full name. going by the accuracy of the stopwatch, which is the most accurate determination for the number of minutes lola needs to sign all 96 invitations

The chemical form of energy that is useable by the cell to do work