Bonus 2 points What is being depicted in this cartoon HI

Which serum sample contains antibodies that block infection Sample A Sample B A Neither OB Both

You are comparing the events of meiosis I in cells from several different organisms You come across one species in which you do hot is Multiple Choice the chromosome pairs will not assort independently chiasmata will form during meiosis I kinetochores of sister chromatids do not fuse there is no crossing over between non sister chromatids

The point of connection between two sister chromatids before anaphase II of meiosis separates them is called the Multiple Choice centromere spindle apparatus centrosome kinetochore

B The ciliated columnar epithelial cells in humans are AIPMT Prelims 2011 known to occur in 1 Fallopian tubes and urethra 2 Eustachian tube and stomach lining 3 Bronchioles and fallopian tubes 4 Bile duct and oesophagus

Select the TRUE statement regarding viruses Viruses have completely random shapes Viruses may be unicellular or multicellular Virus are considered living because they contain nucleic acid Most viruses are smaller than bacteria but bigger than ribosomes Viruses always cause death of the host cells they infect

Match either the insect or characteristic to the type of metamorphosis Hexapods may undergo Egg several instars adult Cicadas Butterfly Wings develop externally and increase in size animal grows by successive molts Egg larva pupa adult Egg juvenile adult Transitional stage where organisms are usually inactive and nonfeeding Springtails 1 Ametabolous 2 Hemimetabolous 3 Holometabolous

A scientist wants to study histones Histones are Multiple Choice proteins that regulate checkpoints in the mitotic cell cycle proteins that serve as the spindle fiber to pull sister chromatids apart during anaphase proteins that double stranded DNA molecules wrap around in eukaryotes proteins that double stranded DNA molecules wrap around in prokaryotes and eukaryotes proteins that required for the activity of Cdk enzymes

What are the 3 steps in gluconeogenesis that are different from glycolysis Propose a reason for why these steps are needed

Which of the following equations best summarizes cellular respiration C6H12O6 6 02 6 CO2 6 H2O 06 CO2 6 H2O light energy C6H12O6 6 02 C6H12O6 6 H2O C6H12O6 6 H2O 6 CO2 6 02 ATP 6 CO2 6 02 C6H1206 6 H2O 6 CO2 6 02

11 25 oints AMP activated protein kinase AMPK is an enzyme that is activated by high levels of AMP in cells If levels of AMP are high in cells that means that levels of ATP are low Once active AMPK activates catabolic pathways and inhibits anabolic pathways in the cell Why do you think that is the case Choose the answer that best explains the role of AMPK Multiple Choice By activating catabolic pathways AMPK provides a mechanism to activate exergonic pathways which is important if AMP levels are high in the cell O High levels of AMP Indicate that there is a high amount of energy stored in the cell thus activating catabolic pathways and inhibiting anabolic pathways are mechanisms to use stored energy By inhibiting anabolic pathways AMPK provides a mechanism to generate heat for the cell which is important if AMP levels are high in the cell Activating catabolic pathways and inhibiting anabolic pathways will ultimately lead to higher consumption of ATP which is important if AMP levels are high in the cell