what are the answer choices
<span>The troposphere layer can have thunderstorms
or clear, sunny skies. The biosphere interacts most with this layer. </span>
The stratosphere is the second layer
from Earth's surface. Winds are strong and steady in this layer. <span>
</span>
The mesosphere is heated by the ozone
layer beneath it. This layer is where most meteor showers occur.
The
thermosphere contains the ionosphere and exosphere. It contains layers of
single, unmixed gas.
<span>
</span>
Answer:
a) 1 tall:1 dwarf
Explanation:
Let's assume that the allele T is responsible for tallness while the allele "t" imparts dwarfism. The genotype of a homozygous recessive dwarf pea plant is "tt" and that of the heterozygous tall pea plant is "Tt". The heterozygous tall parent would make two types of gametes in equal proportion while the homozygous parent would produce all the gametes carrying "t" allele only.
A cross between Tt and tt gives progeny in following phenotype ratio= 1 tall: 1 dwarf.