#Question id: 98
#Unit 1. Molecules and their Interaction Relevant to Biology
The elasticity and resistance to compression of connective tissue is due to
#Question id: 296
#Unit 1. Molecules and their Interaction Relevant to Biology
In a single molecule of water, two hydrogen atoms are bonded to a single oxygen atom by ________.
#Question id: 3403
#Unit 11. Evolution and Behavior
Balancing selection is a type of natural selection that balances two or more alleles in population allows maintaining genetic diversity. Which of the following allowed to this type of selection?
A- Heterozygote has the highest level of Fitness than normal homozygote
B- If rare phenotypes are favored over common phenotypes
C- Introduction of new allele in to a population by mutation and allowed to higher fitness in individuals
D- One homozygote has a highest level of fitness than heterozygote and another homozygote
#Question id: 11150
#Unit 7. System Physiology – Animal
Use the information in the table to answer the question.
Calculate the equilibrium potential for potassium. Assume a temperature of 37°C.
#Question id: 2975
#Unit 2. Cellular Organization
Following statements are regarding to the Surveillance mechanisms in cell cycle regulation.
A. Surveillance mechanisms known as checkpoint pathways establish dependencies among cell cycle events and ensure that the next cell cycle event does not occur prior to the completion of a preceding event.
B. In response to DNA damage, two related protein kinases, ATM and ATR, are recruited to the site of the damage, where they activate signaling pathways that lead to cell cycle arrest, repair, and under some circumstances, apoptosis.
C. The spindle assembly checkpoint pathway, which causes initiation of anaphase, utilizes Mad2 and other proteins to regulate APC/CCdc20, which targets securing and mitotic cyclins for ubiquitinylation.
D. The spindle position checkpoint pathway prevents mitotic CDK inactivation when the spindle is mispositioned. In this pathway, localized activators and inhibitors and a sensor that shuttles between them allow cells to sense spindle position.
Which of the following statement is incorrect?