#Question id: 2624
#Unit 2. Cellular Organization
What is negative regulation of lac operon
#Question id: 3377
#Unit 11. Evolution and Behavior
To call a behavior altruistic, an evolutionary biologist will have to demonstrate that
A) These behavior is decrease the individual fitness of the donor and increases the individual fitness of the recipient
B) These behavior is increases the individual fitness of both the donor and the recipient
C) Overall increase the inclusive fitness of the population
D) These behavior depend on genetic relation
Which of the following above statement is correct?
#Question id: 1307
#Unit 4. Cell Communication and Cell Signaling
A defect in which of the following intercellular junctions would allow partially digested material to leak passively between the cells of the small intestine into the abdominal cavity?
#Question id: 11167
#Unit 2. Cellular Organization
The core structure of the GPI group consists of :
#Question id: 11610
#Unit 6. System Physiology – Plant
Environmental factors such as photoperiod and temperature can alter the levels of active gibberellins by affecting gene transcription for specific steps in the biosynthetic pathway such as;
a) Promotion of germination by light has been shown to be
due to increases in GA1 levels resulting from a light-induced increase in the
transcription of the gene for GA3ox, which converts GA20 to GA1
b) level of GA20-oxidase occurs in the highest amount in
shoot tips and elongating stems, is increased under long-day conditions. The fact that GA 20-oxidase is the enzyme that
converts GA53 to GA20
c) Giving cold treatment
of Thlaspiarvense and a return to high temperatures, the ent-kaurenoic
acid is converted to GA9, the most active gibberellin for stimulating the
flowering response
d) Potato plants overexpressing the GA20ox gene showed
tuberization, whereas transformation with the antisense gene for GA20ox
inhibited tuberization
Which of the following from the given above statements is correct?