#Question id: 5354
#Unit 8. Inheritance Biology
Eye color gene link with X chromosome, If red eye color gene is dominant over white eye color gene. Which of the following genetic cross and their respective offspring is not correlated?
|
Genetic cross |
Phenotype of offspring |
|
|
1 |
Heterozygous Red eye female X Red eye Male |
All male red eye |
|
2 |
Heterozygous Red eye female X white eye Male |
Male either red or white eye |
|
3 |
Homozygous Red eye female X white eye Male |
All female red eye |
|
4 |
Homozygous Red eye female X Red eye Male |
All male red eye |
#Question id: 354
#Unit 1. Molecules and their Interaction Relevant to Biology
You have a freshly prepared 0.1 M sucrose (molecular mass 342) solution, which means ________.
#Question id: 5679
#Unit 5. Developmental Biology
Following statements regarding to the molecular processes of capacitation.
A. The sperm cell membrane is altered by the removal of albumin by cholesterol in the female reproductive tract.
B. Particular proteins or carbohydrates on the sperm surface are lost during decapacitation.
C. The membrane potential of the sperm cell becomes more positive as potassium ions leave the sperm. This change in membrane potential may allow calcium channels to be opened and permit calcium to enter the sperm.
D. Calcium and bicarbonate ions are critical in activating cAMP production and in facilitating the membrane fusion events of the acrosome reaction.
E. As a result of cAMP formation, protein phosphorylation occurs. Once they are phosphorylated, some proteins migrate to the surface of the sperm head. One of these proteins is izumo, which is critical in sperm-egg fusion.
which one of the following combinations is correct?
#Question id: 11939
#Unit 7. System Physiology – Animal
Which of the following would cause the greatest degree of hyperkalemia?
#Question id: 10487
#Unit 6. System Physiology – Plant
During the patch clamp experiments measure outward electric
current in picoamps, pA at the plasma membrane of a guard cell protoplast
stimulated by two points A and B showing in the graph.
What is A and B
