A very small population of a species faces a greater threat of extinction. Provide a suitable genetic explanation.

When a cross is made between a tall plant with yellow seeds (Tt Yy) and a tall plant with green seeds (Tt yy), what is true regarding the proportions of phenotypes of the offsprings in F1 generation?
Proportion of Tall and Green         Proportion of Dwarf and Green 

Body features are

Differentiate between the following.
Monohybrid cross - Dihybrid cross

When two genetic loci produce identical phenotypes in cis and trans position, they are

Assertion :Alleles can transmit from parents to progeny without variations.
Reason :Alleles of different genes could be linked.

A gene that shows it's effect on more than one character is

Which genotype represents a true hybrid condition?

What control characteristics or traits? How they control those characteristics?