In cattle, there is an allele called dwarf which the heteroz…

In cattle, there is an allele called dwarf which the heterozygous genotype produces calves with legs which are shorter than normal. This is a homozygous recessive lethal trait in which the homozygous recessive dwarf calves spontaneously abort early or a stillborn. If a dwarf bull is mated to 400 dwarf cows, how many dwarf calves would you expect? Assume all 400 cows had calves born alive and healthy.

Virtual Lab Q: What is the purpose of including known TNF1 a…

Virtual Lab Q: What is the purpose of including known TNF1 and TNF2 DNA samples in the loading sequence? A:  The purpose of including known TNF1 and TNF2 DNA samples in the loading sequence is to serve as positive controls. This helps verify that the PCR and gel electrophoresis processes are functioning correctly by ensuring that the known DNA sequences are properly amplified and detected.  

Virtual Lab Q: What is the purpose of using a running buffer…

Virtual Lab Q: What is the purpose of using a running buffer instead of deionized water when running a gel? A: Running buffer provides ions that facilitate the conduction of electric current through the gel, which is essential for separating DNA or proteins during electrophoresis.