Which of the following statements is true about protein synthesis in prokaryotes?
a) extensive rna processing is required before prokaryotic transcripts can be translated.

b) translation can begin while transcription is still in progress.
c) prokaryotic cells have complicated mechanisms for targeting proteins to the appropriate cellular organelles.
d) unlike eukaryotes, prokaryotes require no initiation or elongation factors.

The correct option is B.

Prokaryotes are single cell organisms, which do not have nucleus, thus, their protein synthesis process is quite different from those of eukaryotic organisms. In eukaryotic cells, transcription usually occurs in the nucleus while the translation stage occurs in the cytoplasm. In prokaryotic cells, both transcription and translation take place in the cytoplasm and the two occur at the same time, that is, as transcription is taking place, translation also occur simultaneously, this process is called couple transcription – translation.

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 !

the cell cycle is the final answer! : )