Biology Answers

which of the following staements is true for exocytosis?

a. it halps in th eintake off large materials by the cell

b. it occurs without the help of any organelle

c. it is a form of active tranport

d. it does not require energy

which of the following statements is true for endocytosis?

a. it does not require energy

b. it helps in the intake of large materials by the cell

c. it occurs without the help of any cell organelle

d. it is a form of passive transport

write a paragraph expressing what do you think will happen if there is no bulk transport in our body.

An oligoribonucleotide is treated with T1 and RP enzymes. the fragments obtained from the action of each enzyme are: 

a) with RP AG^mGGAAU,AAAGU,AAG,GAT,IGC,C,C,C,C,

U,U

b)with T1

ATUCCAG^m,CAAAG,CCAAG,AAUI,UUG,G,G,G

——find the sequence of bases in this m-RNA fragment

What is the MOST likely reason that many homeotic gene sequences are very, very similar even in species that do not share a recent common ancestor?

The following outdoor activity promotes the development of the fine-motor skills

1. Springing
2. Running
3. Talking
4. 3 and 4

) When so much damage occurs in DNA that during excision reparation the cell does not have time to completely eliminate them. As a result, after replication of this DNA the daughter chain has “gaps” that are formed at the site of damage of the mother DNA chain,.

1. What type of reparation corrects such damage?

2. What are the molecular mechanisms the cause of this disorder?

What is biology?

Discuss how the genetic code allows synthesis to take place with few errors.

Alligators, dinosaurs, mammals, and birds are all more closely related to one another than any of these species are to turtles, according to the evidence. If we want taxonomic classes to represent ancestral relationships - with all members of a group sharing a shared ancestor and the group containing all descendants of that common ancestor - how do we revise vertebrate classification?