TLS Online TPP Program

#Id: 10284

#Unit 6. System Physiology – Plant

K+in channels are inhibited directly by the rise in [Ca2+]cyt. Overall, therefore, the increase in [Ca2+]cyt causes the net efflux of anions and K+ from the cell, leading to a fall in guard cell turgor.

TLS Online TPP Program

#Id: 4504

#Unit 13. Methods in Biology

When the positive terminal is on the left leg, the lead is known as the aVF lead.

TLS Online TPP Program

#Id: 6347

#Unit 8. Inheritance Biology

Y-Linked Characteristics

Y-linked traits—also called holandric traits—exhibit a distinct pattern of inheritance.  These traits are present only in males, because only males possess a Y chromosome, and are always inherited from the father.

TLS Online TPP Program

#Id: 8032

#Unit 1. Molecules and their Interaction Relevant to Biology

Ornithine and citrulline, which are not found in proteins, are intermediates in the biosynthesis of arginine and in the urea cycle.

TLS Online TPP Program

#Id: 4051

#Unit 2. Cellular Organization

The centromeres of all four chromosomes of D. melanogaster aggregate to form a chromocenter that consists largely of heterochromatin.