Question

How many different gametes could you get from an individual with the genotype WWDd?

How many different offspring (phenotypes) will you get from following cross: TtGg x TtGGC

Defined as different forms of a gene.

Mitosis is defined as

If tall is dominant over short and green flowers are dominant over white flowers, what would the phenotype(s) be for the following cross ?

Answer 1

Q1)

An individual with the genotype WWDd, would pass on the W allele to all their gametes. The gametes may have the D allele or the d allele. Thus, the two types of Gametes possible for an individual of the genotype WWDd are:

WD
Wd

Q2)

From the cross TtGg x TtGG:

The first parent can produce the gametes:

TG
Tg
tG
tg

The second parent can produce the gametes:

TG
tG
The different types of progeny produced from this cross are:

		Gametes of Parent 1
		TG	Tg	tG	tg
Gametes of Parent 2	TG	TTGG	TTGg	TtGG	TtGg
tG	TtGG	TtGg	ttGG	ttGg

Therefore, the following phenotypes are possible from this cross: TG tG

Q3)

Different forms of a gene are known as alleles. Alleles are variations of the same gene, which may encode for slightly different protein sequences or may produce the same protein but at different levels.

Q4)

Mitosis is defined as the equal division of the parental cell into two daughter cells. Mitosis is the type of non-reducing division where each daughter cell receives the same amount of genetic material. These daughter cells are also typically equal in size.