Which of the following statements is true of homologous chromosomes?

a. they are exact copies.

b. they contain the same genes

c. they divide during meiosis 2

d. they connect to each other

can someone hep me with this question?

How did the discovery of the rhesus factor affect society? o more patients died from having a transfusion with the wrong rhesus factor 0 new treatments during pregnancy could prevent harm to the developing child. o less donated blood could be used in the treatment of patients. the number of blood types was reduced by half

You are working in the lab and are working with the same element but with varying isotopes of the element. you are working with c-11, c-13, c-14, and c-15. what is the average atomic mass of this element? (use periodic table) a- 12 b-15 c-14 d-13

How do living things obtain phosphorus