Answer:
To find the extinct species and their divergence of characters can be studied using molecular genetic techniques.
Explanation:
- Paleontology is the study of ancient species and their remaining that were found millions of years ago. These species extinction can be found and manipulated to find out the origin or divergence of species from their origin
- The samples of these species may contains their remains that help the biologist to isolate and analyze their protein or DNA. when the DNA is isolated their sequences can be generated using molecular biology techniques.
- When the sequences are identified by advanced molecular biology techniques, the existence and similarities of different species due to their convergence or divergence can be identified.
- By identifying the convergence or divergence the characteristics, evolutionary change in behavior, variation in appearance can be studied.
- By using these techniques, biologist have found that <em>homo sapiens</em> are 99% have their similarities with chimpanzee
- Thus, using genetics in paleontology helps us to understand adaptation a species is changing according to the evolutionary changes.
Answer:
The nucleus is an organelle found in eukaryotic cells.
Explanation:
Rough ER - protein synthesis, transport of proteins throughout the cell
Smooth ER - lipid synthesis and cell detoxification
The answer to this question is c! Thanks for posting your questions!
Answer:
There will be three spots that will light up.
Explanation:
There is a research paper published which demonstrated the trisomy of 21 chromosome. They found out that there are total three spots that light up in Trisomy 21 (down's syndrome's fetus). I have attached picture from research paper and provided the reference below.
Reference
(Davies, A. F., Barber, L., Murer-Orlando, M., Bobrow, M., & Adinolfi, M. (1994). FISH detection of trisomy 21 in interphase by the simultaneous use of two differentially labelled cosmid contigs. Journal of medical genetics, 31(9), 679-685)
