Agricultural activities. ...
Exhaust from factories and industries. ...
Mining operations. ...
Indoor air pollution.
Explanation:
under what circumstance does a negative cell presents An antigen to another negative cell
Answer: C. conclusions made by analyzing new data.
Explanation:
A scientific knowledge and education is reflected by the fact that how well a scientist implement the scientific procedure for a research. The way the scientist interpret and frame the conclusions based on the data comes from analyzes of data this quality becomes better with research experience.
The genotype for the F1 generation is PURPLE PETALS.
In cross breeding, the offspring of the original generation in a cross are called F1 generation. When two breeding of a particular living organisms are crossed, then the F1 generation will be all the same.<span />
Answer: XHXh (Note: the H's are superscripts.)
Explanation:
Hemophilia is a sex-linked recessive trait which means that the males having one altered copy of the gene is enough to cause the medical condition( as they have only one X chromosomes and females have two)
In this case the genotype of father and son is such that they are affected by hemophilia.The son has mother's X chromosome and father's Y chromosome.
XhY is the genotype of father and son. As mother would be heterozygous because she is not affected, her genotype will be XHXh.