Answer:
Answer is option 1
Explanation:
Please mark brainliest this is a scientific answer not a giess
Ans: Cancer is the result of unchecked cell division caused by a breakdown of the mechanisms regulating the cell cycle. The loss of control begins with a change in the DNA sequence of a gene that codes for one of the regulatory molecules.
Answer:
Because humans are multicellular, eukaryotic (contains a nucleus), vertebrates, and mammals, the best organism to test the synthetic hormones on would be a mouse.
Explanation:
Humans and whales are multicellular (they have many cells) and their cells are eukaryotic (contain a nucleus). They also have a backbone (spinal column), which makes them a vertebrate. Finally, all humans and whales are mammals. Therefore, to get the best results, the testing should be performed on a mouse.
- Performing the experiment on yeast would give good results for singular-celled organisms, like <em>protozoa</em>.
- Performing the experiment on a fruit fly would give good results for multicellular invertebrates, like <em>spiders</em>.
- Performing the experiment on zebrafish would give good results for all fish in general.
Restriction Enzymes
These enzymes are produced by bacteria. they have the ability to cleave DNA fragment a specific recognition site. They are also known as restriction endonucleases or molecular scissors. On the basis of sub unit composition, cleavage position, sequence specificity and co-factor requirements they are classified into four groups.
In gel electrophoresis DNA fragments are separated according to size. Large DNA fragments not move very far because of their large molecular size they can not travel.
In this case hybridize mean to measure the degree of genetic similarity between two pools of DNA sequence.
Purpose of DNA probe hybridization
Hybridization probe is 100-1000 bp long strand which is radioactively labelled. It is used to determine the presence of nucleotides in DNA which is complementary to sequence in DNA probe.
