1. Phenotypes that decide the decide the development plan of the body do not vary in a population of organisms. Example, the segmentation of the body (number of hands, legs, ears, eyes, etc.).
2. Phenotypes that vary in a population are the eye color, hair color, hair growth, body size, body build, cold tolerance, skin color, etc.
3. Most of the phenotypes have a genetic basis, example, the colorblindness trait that is X linked inherited. But some phenotypes vary epigenetically, e.g., differences in body features of twins.
4. Yes, environment influences the phenotypes. Twins have a genetically identical DNA yet they have minute differences in their skin color, eye color, body build, etc. Such differences arise when the environment differently affects the gene regulation within the body of the twins.
<span>1. Cytoplasm. Cytoplasm is where its organelles are suspended.</span>
<span>2. Ribosomes. These ribosomes facilitate in manufacturing the cell’s proteins used in many cellular activities.</span>
<span><span>3. </span>Plasmid. It is a tiny DNA molecule.</span>
<span>4. Nucleoid. The genophore of a prokaryotic cell where its genetical material are found.</span>
Prokaryotic cells have: <span><span>1. </span>Capsules.</span>
<span><span>2. </span>Flagellum. A tail</span>
<span><span>3. </span>Pili, a hair-like structure on its surface.</span>
A recessive trait is observed when an organism has 2 recessive genetic factor
Answer: Option C
<u>Explanation:</u>
According to the Mendel’s law of inheritance there are two traits. Dominant and recessive. Usually the recessive are submissive genes which cannot express their characteristics. The dominant trait are the ones which expresses the characteristics.
Two copies of recessive allele are required for the recessive trait to be produced. The recessive trait will be expressed by each parent contributing one allele towards the offspring.
Answer:
The answer is A.
Explanation:
Because B is easily disproven because they do not always spend their whole life on land. C is incorrect because most species of birds to not spend their lives in water. And D is wrong because both of their young develop in eggs.
