0
What type of reproduction has occurred when one organism produces genetically identical offspring?
Asexual Reproduction
Asexual reproduction is ONE parent giving rise to offspring with identical genome(s) as the parent
Common Types of Asexual Reproduction:
Fission (Mitosis in somatic cells)
Budding (In Yeast, Hydra)
Vegetative Propagation (aka Vegetative Reproduction) (Clonal colonies in trees)
Fragmentation (In Fungi)
BUT IF THE OFFSPRING HAVE THE SAME GENOME AS EACH OTHER BUT NOT THE SAME AS THE PARENT,
then the offspring most likely started as one, but split, for example identical twins
What else can I help you with?
Slow change over time in a species is a way to define?
It is called speciation. Speciation can happen through adaptation, which is a change in an organisms genetic code. If adaptation has gone on long enough so that the two organisms can no longer produce offspring, then speciation has occurred.
The Enlightenment and Scientific Revolution both occurred during which time periods?
The Enlightenment and Scientific Revolution both occurred between 1600 - 1800 CE.
Theory that processes that can be seen today occurred in the past?
Uniformitarianism
How does a chemical equation show that a chemical reaction has occurred?
A chemical equation shows that chemical reaction has occurred as new substances have been formed from the reagents. A chemical equation has two sides before reaction and after reaction, if there is any change from the before reaction side to the after reaction side, it indicates that a chemical reaction has just occurred.
Give a brief description of the evolutionary changes that occurred in the organism?
they have lots of steps
How does the heredity of a cell formed by mitosis compare to the herdity of the parent cell?
During Mitosis the cell creates an exact replica of the DNA and the cell as a whole. When an offspring is formed asexually the parent and offspring are also identical. When an offspring is formed sexually half the genetics of the parents are passed on to the offspring.
Complete reproduction isolation is evidence that what has occurred?
speciation
What selective advantages drove the development of sexual reproduction and how did it develop?
Asexual reproduction produces organisms that are exactly identical or clones of each other. This leaves these organisms subject to total destruction if one can be affected all can be affected. Sexual reproduction was favored because each individual in a species is slightly different. If a disease occurred in the species, there would be a good chance that some would survive.
How does binary fission happen?
Binary fission is a form of asexual reproduction in which a single cell divides into two separate cells. During this process, the DNA of the cell is replicated, and the cell then elongates and divides in the middle, resulting in two genetically identical daughter cells. This process is common in prokaryotic cells, such as bacteria.
How could neanderthal and human interbreed to produce healthy viable offspring?
Neanderthals and humans were genetically similar enough to be able to produce viable offspring when interbreeding occurred. The hybrid offspring likely benefited from gene flow between the two populations, leading to increased genetic diversity. Additionally, the ability to interbreed indicates that Neanderthals and humans were closely related species.
When a cutting from a plant sprouts roots and yields a new independent plant what process has occurred?
The process that has occurred is called vegetative propagation. This is a form of asexual reproduction where a new plant is produced from a part of the original plant, such as a cutting, without the need for seeds.
Which one of the following is an example of a postzygotic reproductive barrier A Hybid sterility B habitat isolation C Gamete isolation?
A Hybrid sterility is an example of a postzygotic reproductive barrier. This occurs when the offspring of two species are sterile and cannot produce viable offspring of their own. It is a mechanism that prevents gene flow between species after mating has occurred.
In Model 3 two of the light alleles were lost (through the death of the individual who had these two alleles) before reproduction occurred in the 1st generation how did this affect the distribution of?
In Model 3 two of the light alleles were lost (through the death of the individual who had these two alleles) before reproduction occurred in the 1st generation how did this affect the distribution of the three alleles in this small population?
Why does a mutation in a sex cell affect an organism?
It only affects the offspring of the organism.
How does DNA in a new cell compare to the old cell when it replicates?
Since replication is semi-conservative and DNA replicates before mitosis the DNA in the new and old cell ( if you wish to use that terminology, as both are daughter cells ) is composed of one new strand and one old template strand.
How does a mutation in a cell affect an organism?
A mutation in a sex cell means that the mutation can be passed on to the individuals offspring. If the mutation just occurred in a somatic cell, it would not be passed down.
What has occurred when a large number of species die out over short period of time?
That is usually referred to as a Mass Extinction, and what has happened is some very major event has occurred that cuts off the animals' ability to either eat, produce offspring, or otherwise survive, without a chance of migration to better locations.
