As you can see in the table presented below, all of the gametophytes have seeds do not form in an enclosed structure and <span>undergo alternation of generations (marked in purple)
The gingkos were widespread in the distant past, but are now presented with only one species with fan-like leaves, the Gingko Biloba. (green)
The gnetophytes have three genera with very different looking species. One of the most iconic ones being the Welwitschia mirabilis often called the wise man's beard. (blue)
The conifers include redwoods, like sequoias and all, have pines as leaves and produce cones. (brown)</span>
Answer:
<h2>
Tetracycline affects the binding of tRNA to the ribosome.
</h2><h2>
Chloraamphenicol affect: growth of the protein chain.</h2>
Explanation:
1. Antibiotics block protein synthesis mostly in prokaryotes only as prokaryotes contain 70s ribosome.
2. Antibiotics are of various types, which have different targets in protein synthesis, some works on small sub-unit of ribosome and some on large sub-unit.
⇒Tetracycline would directly affect binding of tRNA to the A site on ribosome. tRNA brings amino acid to the ribosome which pairs with codon on mRNA.
⇒ Chloraamphenicol would directly affect growth of the protein chain because it block peptidyl transfer so the elongation of protein terminates.
The proteins, being made up a diverse set of amino acids, have, in addition to carbon, hydrogen, oxygen, and nitrogen, the elements sulfur and selenium. It is incredible the complex array of macromolecules that can be built starting with these simple elements.