Answer:
1.) TT x Tt; Genotype: TT 2: Tt 2; Phenotype: 100% Tall
2.) Gg x gg; Genotype: Gg 2: gg 2; Phenotype: 50% green; 50% yellow
3.) Bb x Bb; Genotype: BB 1: Bb 2: bb 1; Phenotype: 75% brown; 25% blue
4.) Rr x rr; Genotype: Rr 2: rr 2; Phenotype: 50% Rolling tongue; 50% Can't roll tongue
5.) Bb x bb; Genotype: Bb 2: bb 2; Phenotype: 50% Black hair; 50% Blonde hair
Explanation:
Homozygous means same while heterozygous means different.
3.) If a man and a woman both have brown eyes, yet they have a child with blue eyes, both parents must be heterozygous brown.
4.) Bob is heterozygous R and Sally is homozygous r. This is because Rolling your tongue is dominant over not rolling your tongue. For Bob to be able to roll his tongue while having a mother who cannot, he must be Rr. If Sally cannot roll her tongue she must be rr.
5.) The man is heterozygous black. His wife is homozygous blonde. Black hair is dominant to blonde hair. If the man had black hair and his mother had blonde hair, he must be Bb. His wife having blonde hair means she is bb.
Hope this helps,
♥<em>A.W.E.</em><u><em>S.W.A.N.</em></u>♥
Answer:
supporting a variety of organisms, cleaning oil from oceans, producing oxygen
Explanation:
While they do have some medical benefits, those are still being explored and its looking for <em>important roles </em>these seem more important.
Answer:
Root hair cells are alive and therefore need energy, which is why root hair cells contain many mitochondria in them. Root hair cells don't contain chloroplasts. Chloroplasts are used by the plant to make food using light energy. Since the roots aren't exposed to any form of light, they have no need for chloroplasts.
Answer:
Option A, Key stone
Explanation:
A keystone species plays a major role in an ecosystem as it is the species whose presence effects all other species in the ecosystem .In general a keystone species is always a dominant predator that feed on prey population. If it is removed, the prey population will explode and the population diversity will reduce. For example - bison, prairie dog etc.
Hence, option A is correct
Nitrate pollution in groundwater is most dangerous to infants, because it may cause blue baby <span> syndrome.</span>
