1. The following diagram represents part of a cross section through an angiosperm root.
Lybeleid
soil
(6)
1.1 Describe how water enters the structure numbered 1 from the soil.
1.2 Write down the NUMBERS and NAMES of the tissue through which water
passes, until it reaches the xylem.
(4)
2. Draw a labelled cross section diagram of a dicotyledonous leaf. Use different
colours for different tissues.
(5)​

The answer would be c, white eyes are homozygous recessive. in the early 1900s, morgan conducted several experiments with vinegar  flies (drosophila). one  sample revealed an anomaly: a  white-eyed, single male fly. he attempted to breed this fly with the typical red-eyed females. the offspring were all red-eyed. using flies from this new generation (brother-sister pairs)  produced some red-eyed and a few white-eyed flies. the white-eyed were all male. in later experiments, he was able to produce white-eyed females. this proved that white eyes are not lethal to either sex (ruling out a and b). since the percentage of white eyes to red eyes is so low, white eyes are not a dominant trait. it would be a recessive trait.