Cancer is the result of__________ the genes responsible.
A: mutation
B: heredity
C: sponso
D: attendant
A: mutation
B: heredity
C: sponso
D: attendant
举一反三
- If two genes from a parent cell are on the same chromosome, which of the following best explains why the daughter cells may not have the same alleles as the parent for both genes? A: they are linked genes B: they are unlinked genes C: crossing-over D: genetic mutation
- Tumor suppressor genes encode proteins that normally restrain cell division. Mutation in one or more of these genes can lead to tumor formation.
- Genes happiness. A: code for B: are responsible for C: are associated with D: are not associated with
- Genes( )happiness. A: code for B: are associated with C: all of the above D: are responsible for
- which of following do not belong to pathogenic variations of the endogenous genes ( ) A: gene amplification B: abnormal gene expression C: invasion of the foreign genes D: gene arrangement E: point mutation