Answer:
C. Contains an X chromosome and is fertilized by sperm containing a y.
Explanation:
The male genotype = XY the female = XX
Answer:
Three influenza pandemics occurred during the 20th century: the 1918-19 “Spanish flu,” the 1957-58 “Asian flu,” and the 1968-69 pandemic or “Hong Kong flu.” In 2009, the World Health Organization (WHO) declared a global pandemic of H1N1 flu.
Explanation:
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BASOPHIL(WHITE BLODD CELL) <span>hey release histamines into your system (which then causes blood vessels to leak and attract white blood cells) and heparin into your system. The heparin prevents the clotting so that the WBCs can reach the bacteria to kill it off.
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Answer: Option B) allosteric activation
Energy required by the cell is generated in the form of ATP. ATP is hydrolyzed to power many of the cellular processes, increasing the pool of ADP. As the relative amount of ADP molecules increases, they can bind to glycolytic enzymes, which will lead to the production of more ATP. The best way to describe this mechanism of regulation is allosteric activation
Explanation:
Some enzymes have more than one active site. The other site(s) is called allosteric site.
In this case, ADP released from the glycolytic reactions binds to the allosteric sites of glycolytic enzymes, activating them and causing further breakdown of glucose, hence ATP continues to be generated.
ATP + H2O ---> ADP + Pi + free energy
In traditional plant breeding, new varieties are developed either by selecting plants with desirable characteristics or by combining qualities from two closely related plants through selective breeding.
answer: a,
