<span>Both purple and white flowers are recessive phenotypes. In order for an organism to exhibit a recessive phenotype, its genotype must be homogenous for the recessive allele. This is only possible if the parents of the organisms are also purebreeding and they demonstrate the same recessive phenotypes. </span>
Answer:
0%
Explanation:
This question involves a gene coding for height in pea plants. The allele for tallness (T) is dominant over the allele for shortness (t). This means that allele T will be expressed over allele t in an heterozygous state.
A purebred tall plant will possess genotype: TT while a heterozygous tall plant will possess genotype: Tt. The two parents will produce the following gametes:
TT- T and T
Tt- T and t
Using these gametes in a punnet square (see attached image), the following offsprings with genotypes: TT and Tt in a ratio 1:1 will be produced.
TT offsprings are purebreed tall while Tt offsprings are heterozygous tall. Hence, based on the question, no offsprings of this cross will possess the recessive genotype (tt). This means that 0% of the offsprings of this cross will be short.
Answer:
Option B. Renewable have no environmental concerns associated with them; nonrenewable cause damage to the environment.
Explanation: Renewable resources are those substances which can be recycled or reused after using it. Examples of renewable resources are hydro energy, solar energy and tidal energy etc. Renewable resources are occurs naturally while nonrenewable resources are those substances which cannot be recycled. These substances causes pollution in the environment. It is also found naturally. Examples are petrol, diesel and wood etc.
Cell
Tissue
Organ
Organ System
Organism
Explanation:
The length of the sperm in a few species is much larger or giant than the size of the animal-like observed in the <em>Drosophila bifurca.
</em>
In this fruit-fly, the tails of the sperm are too long which could be accounted for many reasons:
1. The sexual selection prefers the long tails over the small tail.
2. The large sperms can displace the small sperms in the female reproductive organ.
3. The female reproductive organ increases the promiscuity of the large sperms that is favour the large sperms over the small sperms.
