Answer:
The tetrad occurs during the first phase of meiosis. It is the foursome of chromatids that forms when replicated homologous chromosomes align. It must be formed for crossing over to occur. It is broken apart when the homologous chromosomes separate in meiosis I.
Explanation: Hope this help (MARK BRAINLIEST)
Answer:
They have plasma membrane phospholipids that are identical to the Eubacteria.
Explanation:
Archae includes mostly the single celled prokaryotic organism that lacks the membrane bound organelles. Most archae are extremophiles that can tolerate the extreme environment.
Archae shows more similarity to eukarya. The plasma membrane of archae contains of pseudo peptidoglycan that differs form the plasma membrane of the bacteria.
Thus, the correct answer is option (b).
C. tRNA
The ribosome binds to mRNA at a specific area. The ribosome starts matching tRNA anticondon sequences to the mRNA condom sequence. Each time a new tRNA comes into the ribsome, the amino acid that it was carrying gets added to the elongating polypeptide chain.
The complete DNA instruction in the cell must be duplicated
