Answer:
Option C
Explanation:
DNA fragments have negative charge and they move towards the positively charged electrode in gel electrophoresis.
There is no difference in the charge carried by the DNA fragments as they all have the equal amount of charge on them.
The difference in speed of large and small molecules of DNA is due to their sizes.
Large DNA molecules do not pass easily through the pores of the gel while the smaller molecules do not face any such hindrance and are easily passed through the gel . Therefore small DNA molecules move faster.
F plasmid has the largest size and hence it will move slowly.
Option C is correct
True.In fact, this can only happen in a vacuum
The moths evolved to their environment, since coal was being used a lot during those times black fumes were everywhere around the city. So in order to blend in the slowly evolved into a darker shade to survive
Answer:
Drought in this region is frequent, lasting one to two months on average, and ... Prairie grasslands extend eastward from the Canadian Rockies to the ... The extreme nature of climate on the prairies was first highlighted in relation to ... prairies, a well-defined gradient existed in Tmn, extending from a high of around −12.5 °C
