Which of the following processes generates a continuum (spectrum) of varying phenotypes?
a) Incomplete dominance
b) Polygenic inheritance
c) Multiple alleles
d) Single-gene traits

option B: Polygenic inheritance

Explanation:

Polygenic inheritance in genetics and plant breeding can be defined as a type of inheritance whereby  one or a single trait or  characteristics(color)  is controlled by multiple genes (two or more genes). it is a continuous variation that depicts a normal distribution curve

the phenotype of a plant or an animal increases if when there is an increase in the number of genes controlling a particular trait or characteristics. polygenic inheritance are non-Mendelian form of inheritance in  nature and a  single trait expressed is as a result of the interaction of many or multiple genes that are quantitative genes in nature. examples are weight, skin color, height, e.t.c

where is the option.let me know

sand 60

clay 10

silt 30

sandy loam should be dominated by the sand. as the amount of sand increased, the amount of slit needed to anchor the plants' roots to the sand will also be increased. even though the amount is very little, 10% part of clay is still necessary for proper oxidation.