Male-limited precocious puberty, results from an autosomal dominant allele (P). Males with precocious puberty cross with the normal puberty in female, what will be the probability of precocious puberty in male F1 generation?

TLS Online TPP Program

#Question id: 7760

#Unit 5. Developmental Biology

In general, the hormones that regulate senescence can be divided into two basic categories based on their most commonly observed effects:

I) positive (promoting) senescence regulators and

II) negative (repressing) senescence regulators

a) Hormones involved-Ethylene, Abscisic acid (ABA)

b) Hormones involved-Brassinosteroids (BRs), Salicylic acid (SA), Jasmonic acid (JA)

c) Hormones involved-Cytokinin, Auxin, Gibberellin (GAs)

Select correct combinations from given hormones which are involved in regulators?

TLS Online TPP Program

#Question id: 11995

#Unit 10. Ecological Principles

You are working for the Environmental Protection Agency and researching the effect of a potentially toxic chemical in drinking water. There is no documented scientific evidence showing that the chemical is toxic, but many suspect it to be a health hazard. Using the precautionary principle, what would be a reasonable environmental policy?

TLS Online TPP Program

#Question id: 5043

#Unit 5. Developmental Biology

 The ability of a single cell to divide and produce all of the differentiated cells in an organism:

TLS Online TPP Program

#Question id: 27111

#Unit 4. Cell Communication and Cell Signaling

Connexins and innexins play a very important role as a adhesion receptors for

TLS Online TPP Program

#Question id: 2453

#Unit 2. Cellular Organization

Keratins

a. are found in the nucleus.                            

b. are typically expressed in neuronal cells.

c. contain an acidic and a basic subunit.                    

d. function in cell adhesion.

e. are the major proteins of hair and horns.