The arctic fox has 50 chromosomes (25 per set), and the common red fox has 38 chromosomes (19 per set). these species can interbreed to produce viable but infertile offspring. how many chromosomes would the offspring have? what problems do you think may occur during meiosis that would explain the offspring’s infertility?

The organism is sterile because parts of the chromosomes in the zygote will only have a  single set of chromosomes rather than the ideal pair. The arctic fox will produce gamates with 25 chromosomes (a single set) while the red fox will produce gametes with 19 chromosomes (another set). These gametes are supposed to fuse and have their chromosomes paired. However notice that the offspring will have (25 – 19) six (6)  unpaired chromosomes. This means that during the formation of gametes in this hybrid offspring, there will be an issue in meiosis I which will result in nonviable gametes.

d concave shape of wave rock

explanation:

the concave shape of wave rock is a very good evidence that supports the evolution of earth due to chemical weathering. if we talk about structure of   wave rock, studies have estimated that it is around 2.7 billion years old. it also serves as the foundation of evidence that it was the place where australian continent began to form.

how the structure of wave rock was created?

studies suggest that structure of wave rock was created when the surrounded area was started to weather due to which deposition of material started on the part of land which now contains wave rock.

the structure of wave rock is considered to be one of the best-known landforms in australia. at the height of around 15 cm, there can be found flared slopes which formulate the margins of hyden rock. it is now assumed by geologists that wave rock was created by subsurface water-induced weathering and not by glaciers, waves or wind.

due to deposition of material over the period of long time, the wave rock became tougher and tougher due to weathering from surrounding terrain. this makes it a physical evidence that supports   the evolution of earth due to chemical weathering.

hope it !