Question

What is one real-life example of an organism that contains recombinant DNA? How do you think that organism could affect its ecosystem?

Answer 1

Maybe this will help :)


1. Living organisms produce offspring of their own kind. (Why? How?)

2. If a population of organisms produces on average one surviving offspring per parent, the population remains the same size over many generations. If more than one offspring per parent survives to reproduce, then the population increases exponentially.

3. In nature, exponential growth can never continue indefinitely. Growth is slowed by: depletion of essential resources; buildup of toxic wastes or poisons; predation or disease.

4. Decrease of a population (due to the factors listed in point 3) usually occurs exponentially. The rate of decrease may be faster or slower than the previous rate of increase.

5. In nature, most populations grow at a rate balanced by death due to disease, waste buildup, resource limitation etc. There are cycles of growth and decline.

6. Reproductive success is increased by dispersal of organisms, or of their gametes (sperm or eggs). Dispersal can be by environmental elements (wind or water); by the organism’s own motility; or by another organism (a “carrier” or “vector”). Dispersal by a vector can be parasitic (harmful) or mutualistic (mutually beneficial).

Mutant Organisms

1. The chromosomes contain the genetic blueprint for the organism to develop and function. Bacteria have one circular chromosome. Plants and animals have several linear chromosomes in the nucleus of each cell.

2. Chromosomes consist of DNA, a code made up of four letters: A, T, C, G. Every individual contains changes in their sequence of these letters, compared to their parents. These changes result from mutation. Therefore, we are all mutants.

3. Humans, like most multicellular animals and plants, have two copies of each chromosome in each of our body cells: one set from the mother, and one from the father.

4. The rate of human mutation is about 2.5 x 10^-8 per "base pair" (that is, per DNA code letter). The human genome is three billion base pairs in length (for one copy). About how many mutations do you have?

5. Most mutations have no effect (we'll find out why later). Only about three of your mutations are deleterious (that is, have a bad effect; make you less fit for your environment than your parents). About what percentage of mutations are deleterious?

6. Most genes are inherited with NO new mutation. You have a 50% chance of inheriting each gene copy (allele) from your mother, and 50% of inheriting each gene copy fromyour father.

7. Some organisms are hermaphrodites; that is, they have both male and female sex organs, and can fertilize each other. Others reproduce asexually; that is, they divide and release new cells (or a portion of their body) without any sexual recombination.

Answer 2

What's an example tho?

Answer 3

chromosomes

Answer 4

Do you want like a sentence example

Answer 5

yea but what's a real-life example of an organism that contains recombinant DNA?

Answer 6

Bacteria

Answer 7

Oh okay well thank you!!

Answer 8

The chromosomes contain the genetic blueprint for the organism to develop and function. Bacteria have one circular chromosome. Plants and animals have several linear chromosomes in the nucleus of each cell.

Answer 9

So an example of that would be bacteria and how it could affect the ecosystem is since in an estuary, when a plant dies bacteria in the water will grab onto it and decompose it. And it creates a black sort of mud. And crabs make their homes out of the mud in low tide.

Answer 10

Would that help???????

Answer 11

yea thank you!

Answer 12

ok glad I could assist. :)

Answer 13

quick question do you think I can get a medal to build up my reputation as a good helper?

Answer 14

Thanks