I think its 25% but hope this charts help you bc It help me
Words Fraction Decimal Percent
1 out of 4 1/4 0.25 25%
2 out of 4 2/4 or 1/2 0.50 50%
3 out of 4 3/4 0.75 75%
4 out of 4 4/4 1.0 100%
Srry if its messy
Answer:
As Rosalind's acknowledgment of being perhaps one of the most wronged women in modern science, her boss, the molecular biologist Maurice Wilkins, stopped her in the 1950s. Wilkins did not accept her as the author of the discovery of the helical shape of DNA, offend Rosalind in several letters he exchanged with other scientists from the same field.
The answer should be B may be wrong
It should be based on the principles of immunology to understand this phenomenon: the immune system produces antibodies against an antigen that it does not possess
The AB group contains the A and B antigens on the red blood cells, so it can not produce anti-A antibodies or anti-B antibodies since it already possesses antigen A and B (otherwise it will develop autoimmunity).