Question

1/ Nucleotides are attached at the ___ carbon during replication.

a/ 1'

b/ 2'

c/3'

d/4'

e/5'

2/  what characteristics do gap junctions bestow on tissues that use these adhesions.

a/ they allow comminution between adjacent cells.

b/ they form a watertight battier between the cells.

c/ they use the extracellular matrix to indirectly connect adjacent cells.

d/ they provide strong connections to resist pulling forces

e/ All of the above

f/ A and B only

3/ when we first see chiasmata under a microscope we know that.

a/ Asexual reproduction has occurred.

b/ Meiosis II has occurred.

c/ anaphase II has occurred.

d/ prophase I is occurring.

e/ separation of homologs has occurred.

Answer 1

Answer -

Question 1. The option (e) is correct. 5'

Explanation - Because two nucleotide are attach together with help of 5' carbon of pentose sugar (deoxyribose) during replication .

Question 2. The option (e ) is correct.

Explanation - Because all function carry by gap junction.

Question 3. The option (d ) is correct. Prophase is occurring.

Explanation - Because chiasmata seen in Prophase - l during meiosis. Chiasmata is form when two homologous chromosome are join at some point for crossing over.