Question

a. what are some implication for gene x being presented on a plasmidvs the chromosome of an organism?

b. consider this same question in the contexof an organism being presented in its native habitat vs a new habitat?

Answer 1

Plasmid genes

1. A plasmid is an extra-chromosomal DNA molecule separate from the chromosomal DNA which is capable of replicating independently of the chromosomal DNA.

2.Plasmid genes are widely used for recombiant DNA technology.

3.Plasmids have much less base pairs than chromosomes . Plasmids are rarely organized by chaperone proteins . Plasmids are easily transferred .

4.Plasmids usually contain non-essential genes . i.e It does not carry any vital gene necessary for cell.

5.Plasmids function can be lost or gained without harming the organism .

6. plasmid It does not act as genetic factor.

7.Introns are absent

8.Plasmids are usually found in "lower" organisms.

where as Chromosomal DNA or gene:

1. It may be single stranded or double stranded.

2. It is linear or circular.

3. It is coated with histone protein.

4. It carries vital genes necessary for cell.

5. It replicates with genome.

6. It acts as genetic factor.

It is present in all the higher organisms.

b.

A natural habitat is an ecological or environmental area where a specific species lives. It is the place in nature that particular species calls home. Oraganism presented its native habitats Isolation of habitats from one another can have profound effects on the biodiversity within. If populations of a species are isolated from neighbors of the same species, there is increased likelihood of inbreeding, which leads to genetic depression, and an increased likelihood of diseases associated with inbreeding.

If some invasive species were introduced to new habitat due to lack of predator over growth of new habitant may also occur.