Answer:
They provide vital goods and services -particularly freshwater - to a significant proportion of humanity. Mountains are key centers of biological and cultural diversity as well important sites of traditional ecological knowledge, and influence the climate at many scales.
Robert Steve and James are three new organisms ( lizard species).
Of these specific types of mutations, they can be categorized into beneficial (helpful), less favorable (harmful), and non-effective (neutral) mutations. so all of the above.
I found the exercise on the internet and attached is the representation of the fly's trisomy.
Correct answer:
<span>"Nondisjunction occurred in the male parent at the meiosis I division to produce an (n+1) sperm that fused with a normal (n) egg."
It is during meiosis I that the homologous chromosomes are divided into two new cells. In this case, if a trisomy is present, it means that during this segregation part during meiosis I, two homologous chromosomes were not separated (n</span>ondisjunction)<span> creating a gamete cell that had two copies of a chromosome (and another without any copy of that chromosome).
This error on meiosis I might have occurred in the male parent. As we can see from the schematic representation of the trisomy, there is two chromosomes with a wild allele (+). These alleles were only present in the male parent, as the female parent was homozygous for all genes, no wild allele (+).</span>
Insects are hard to control because they reproduce in large numbers; they are small, can fly, and hide in small places, making them difficult to see and find. They are able to develop resistance, over time, to pesticides and pass that on to their offspring.