The amount of crossing over is primarily determine by the  a) length of the linked genes  b) size of the linkage group  c) size of the centromeres  d) distance between the linked genes  e) length of the chromosome

The oncogenic protein BETA promotes entry into the S phase of the cell cycle. Phosphorylation of BETA at the amino acid Tyr98 causes BETA to be degraded by the proteasome, thus limiting its abundance. A mutation in the codon encoding Tyr98 changes this residue to Cys, which cannot be phosphorylated. What is the best description of this mutant allele?a) antimorphb) hypermorphc) hypomorphd) amorphe) neomorph

Why is a chromosomal fragment without a centromeresubsequently lost and degraded?

A) Distinguish between the general concept of a gene and the specific concept of an allele at the level of the DNA. B) Strictly speaking, do identical twins have identical phenotypes? Explain.

Which type(s) of chromosomal aberrations result from chromosomal breaks on different chromosomes? Assume that a heterozygote for the aberration is viable. Select all correct answers. A.)Robertsonian translocation B.)reciprocal translocation C.)tandem duplication D.)paracentric inversion E.)pericentric inversion F.)large deletion

Physical maps are constructed by using a chromosome walking technique.a) Trueb) False