Answer:
A visit to the Galapagos Islands in 1835 helped Darwin formulate his ideas on natural selection. He found several species of finch adapted to different environmental niches. The finches also differed in beak shape, food source, and how food was captured.
The reporting of the results of any new research or findings is a necessary step. The reporting of the new discovered drug for the treatment of cancer needs to be reported in a peer-reviewed journal as well. The peer-review helps in validating the authenticity of the results of a research. Publishing the findings in a peer-reviewed journal will allow other scientists to check the findings and ensure the reliability.
Answer:
Explanation:
Quá trình tiêu hoá và hấp thụ chất dinh dưỡng
Answer:
F1) 100% wild type, Pr Vg / pr vg
-----Pr--------Vg------
-----pr---------vg------
Explanation:
<u>Available data</u>:
- Two genes located on the same chromosome
- red eyes (Pr _) are dominant to purple eyes (prpr)
- normal wings (Vg _) are dominant to vestigial wings (vgvg)
Cross: A pure breeding red-eyed fly and vestigial wings with a pure-breeding purple-eyed fly and normal wings
Parentals) Pr vg / Pr vg x pr Vg / pr Vg
Gametes) ----Pr-------vg---- ----pr-------Vg----
----Pr-------vg---- ----pr--------Vg----
F1) 100% wild type, Pr Vg / pr vg
-----Pr--------Vg------
-----pr---------vg------