When two plants belonging to the same genus but different species are crossed, the F1 hybrid is more viable and has more ornate flowers. Unfortunately, this hybrid is sterile and can only be propagated by vegetative cuttings. Explain the sterility of the hybrid and what would have to occur for the sterility of this hybrid to be reversed

Hybrid incompatibility has a genetic basis both in plants and animals

Explanation:

In plants, hybrid incompatibility may be associated with different factors including, for example, mismatch recognition in chromosomal pairing, changes in the ploidy level, homozygous lethal alleles, epigenetic-associated factors, postzygotic hybrid incompatibility, etc.

Hybrid incompatibility is recognized to promote reproductive isolating barriers between species, thereby understanding into the genetic basis of this phenomenon may result useful to understand the evolutionary forces that are associated with speciation.

You can reverse the hybrid incompatibility by changing the ploidy level, since it ensures a correct chromosome pairing during the cell division. You can use colchicine, it is an antimitotic agent that is widely used to duplicate the ploidy level.

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 !

ya the other dude is right