1) in lilac flowers, purple flowers (f) are dominant to white flowers (f). identify if the genotype letters below. 2) in hawthorne trees, long thorns (t) are dominant to short thorns (t). what will the offspring of a homozygous recessive tree and a heterozygous tree be.

Answer

1. a) Homozygous recessive - ff

Homozygous dominanat- FF

Heterogyzous - Ff

b) Ff  - Purple

ff-  white

FF- Purple

2.

tt

TTtTt

ttttt

Explanation:

1. Homozygous genotype of an species be it recessive or dominant consists of two simialr alleles representing the same trait.  

a)  

Homozygous recessive flower will have both recessive allele i.e ff and thus the phenotype of this flower will be “white color”

Homozygous dominant flower will have both dominant allele i.e FF and thus the phenotype of this flower will be “Purple  color”

Heterogyzous flowers will have one dominant and one recessive allele i.e Ff and its phenotype depends on the fact wether the flower is co dominant or autosomal dominant

b)The phenotype of the flower will be as follows  

Ff  - Purple

ff-  white

FF- Purple

2. The genotype of a homozygous recessive tree would be “tt”

The genotype of a heterogyzous tree would be “Tt”

The cross between the two will produce the following offsprings

tt

TTtTt

ttttt

the answer is d. chordata