In Drosophila, grey body is dominant to black, and long wings is dominant to short wings. Two unlinked pairs of alleles, G/g and
L/l, cause this pair of traits respectively. Six pairs of flies of unknown genotypes are mated, giving the results listed below. Write the genotypes of the parental flies in each cross using the gene symbols above. Types of progeny____
Cross Parents Grey Grey Black Black
Long Short Long Short
1 grey long x grey short 43 46 14 17
2 grey short x grey short 0 61 0 23
3 black long x grey long 40 0 44 0
4 grey long x grey long 48 18 0 0
5 grey short x grey long 31 33 0 0
Erythrocytes also called as red blood cells. These are the cells which does not possess nucleus. They exhibit a pigment named as hemoglobin, the heme component of the hemoglobin has affinity for oxygen. It carries oxygen to all the parts of the body.
In order for respiration to occur in cells it needs ATP/ energy that is produced from the digestive system via the breakdown of glucose. The respiratory system inhales oxygen that is needed and the circulatory system enables the transport of oxygen to the other parts of the body.
