Answer:
D. A number of genetically resistant pesticide survivors reproduce. The next generation of insects contains more genes from the survivors than it does from susceptible individuals.
Explanation:
Insect populations already have some insects with pesticide resistance genes. Exposure of insects to pesticides results in the natural selection of these insects with pesticide resistance as they are able to survive and reproduce in the presence of pesticides whereas the other insects die. The resistant insects leave more progeny resulting in the evolution of insect population with increased frequency of pesticide resistance gene.
The X can possibly be the sex chromosome. Like for human female we have the XX chromosomes and when the allele is on the X chromosome we write as X with a R as the superscript on top right.
1. Am invasive species is not apart/native to a specific area and could potentially cause damage to the environment and in some cases human health.
2.Invasive species can be found anywhere, considering that they are not native to an area.
3. Many invasive species form interactions with pollinators, DIRECTLY, and even though this isn’t necessary to the invader, pollinators are the direct role because they play a part in plant invasion, basically meaning they could damage the plant greatly. More direct consequences could be competition.
4. An example of INDIRECT consequences would be via a multi species. Like for example, effecting a certain species just to get to another species, diversely.
5. There are many ways that an invasive species could be introduced mostly by people however.
Part a- A vector is a specific organism that by itself couldn’t spread a certain disease, but by pathogens
Part b- A pathways is different from a vector however because it is along with molecules. These molecules could lead to change in a cell or potentially damage.
Hope this helps! :)
-Syd
The correct answer is option (C) transposons or jumping genes.
Barbara McClintock was an american cytogeneticist. In 1940s, she discovered the phenomenon of transposition brought about by the mobile genetic elements or jumping genes or the transposable elements. These jumping genes refers to a sequence of DNA which can change its position in the genome or the genetic constitution of an organism. She discovered these jumping genes in the Maize for the first time and received the nobel prize in 1983.
Jumping genes form a major portion of the eukaryotic genome. They are often responsible for mutations and associated with the duplication of the genetic material. They also cause the structural changes in the chromosomes like inversion, deletion and translocation which are called the chromosomal aberrations.
