Assuming (i) that the two chromosomes in an homologous pair carry different alleles of some genes and (ii) that no crossing-over takes place, how many genetically different offspring could anyone human couple potentially produce? which of these two assumptions (i or ii) is more realistic?

1 digestive system

2 stomach

3 bladder

4 carbon deoxide

5 tiger

blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. as the ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs where it is oxygenated.

1)

i))the process of preparing food by green plants in the presence of sunlight is called photosynthesis.

ii) leaf is the site for photosynthesis.

iii) it takes place as,

6h2o+6co2=c6h12o6+602