Lab 8 - Review

TRUE or FALSE: Corn is a monecious plant.

True

The male flower of the corn plant is called a __________.

Tassel

The female flower of the corn plant is called a __________.

Ear

On each ear of cob there are numerous kernels that have a potential to give rise to a potential __________ .

New Plant / Offspring

Another name for a corn kernel is __________.

Caryopsis / grain

The endosperm in a kernel is the ___________ for the embryo.

Nutrient Source / food

Starch kernels have a __________ shape.

Round / Smooth

Sweet kernels have a __________shape.

Wrinkled / Shrunken

Kernels that are round contain a small amount of __________.

Sugar / water

TRUE or FALSE: Starch is very soluble in water.

False

When a kernel containing starch in the endosperm is dried, this kernel will lose small amount of water and will remain ________.

Round / smooth

Kernels containing simple sugars in its endosperm will lose much more ________ and will ___________.

Water’ Wrinkle / shrink

The color of the endosperm is usually ____________.

Yellow / White

__________ give the _____________ a distinct purple color.

Anthocyanins; Aleurone

TRUE or FALSE: When a corn kernel is yellow in color it is because the plant does not produce the enzymes that are required for anthocyanin production. Therefore, the aleurone is colorless and the endosperm color comes through.

True

In a dominant strain of corn, _________ is the dominant color of the kernel.

Purple

In a strain of corn, __________ is the recessive shape of the kernel.

Wrinkled

When calculating allelic frequencies, p and q represent the alleles in a population. The total proportion of p + q = _________ (number).

1

TRUE or FALSE: The genotype frequency shows distribution of a variation in a population over time.

True

TRUE or FALSE: The allelic frequency shows the proportion or percentage of an allele over time.

True