Search found 5 matches

by jjkwest1
Wed Apr 18, 2012 6:23 am
Forum: Cell Biology
Topic: sensory question
Replies: 2
Views: 6296

sensory question

As a male silk worm moth nears a female that is releasing bombykol,? a. the female starts to release more bombykol b. the action potential in the antennal nerve increase c. many bombykol sensitive hairs are stimulated per second d. a larger number of bombykol sensitive hair undergoes adaptation e. t...
by jjkwest1
Fri Feb 10, 2012 10:56 am
Forum: Botany Discussion
Topic: some bio multiple choice questions
Replies: 4
Views: 10411

Re:

2. I agreed with you, so why are you so asking? 3. Each pollen grain contains vegetative (non-reproductive) cells (only a single cell in most flowering plants but several in other seed plants) and a generative (reproductive) cell containing two nuclei : a tube nucleus (that produces the pollen tube...
by jjkwest1
Fri Feb 10, 2012 9:25 am
Forum: Botany Discussion
Topic: some bio multiple choice questions
Replies: 4
Views: 10411

Re: some bio multiple choice questions

1. not really, the plant needs to be at cold temperature, so only GA signal is not sufficient 2. seems OK to me 3. Each pollen grain contains vegetative (non-reproductive) cells (only a single cell in most flowering plants but several in other seed plants) and a generative (reproductive) cell conta...
by jjkwest1
Fri Feb 10, 2012 8:00 am
Forum: Botany Discussion
Topic: some bio multiple choice questions
Replies: 4
Views: 10411

some bio multiple choice questions

1. Winter wheat can be planted in the spring for fall harvest if it is a. sprayed with gibberellins. b. soaked in water. d. planted under a full moon. d. stored in the dark for 50 days. e. vernalized. Answer said it was E. but can't A also be right? 2. For plants that flower in response to photoperi...
by jjkwest1
Fri Jan 27, 2012 9:30 pm
Forum: Botany Discussion
Topic: Plant development...Check my answers please?
Replies: 3
Views: 3616

Plant development...Check my answers please?

The aleurone layer of germinating barley can be isolated and studied for the induction of a- amylase, the enzyme that catalyzes starch hydrolysis. Predict the amount of a-amylase activity in aleurone layers to the following treatments: 1. incubation with gibberllic acic 2. incubation with auxin 3. i...