Friedrich Miescher (D) extracted DNA from white blood cells.
Further Explanation:
A geneticcode is the rules employed by the cell to translate info that are encoded in deoxyribonucleic acid or ribonucleic acid into protein. DNA or deoxyribonucleic acid is the hereditary material in humans and most the other living organisms. While ribonucleic acid or RNA is formed once deoxyribonucleic acid undergoes transcription. It contains the codes that are needed for protein synthesis (translation). The deoxyribonucleic acid and ribonucleic acid differ from one another in varied aspects like strand (DNA- double stranded, RNA- single stranded usually) Base pairs (DNA-ATGC; RNA-AUGC), Types, (DNA- A, B, Z type; RNA- RNA, rRNA, tRNA etc.). Friedrich Miescher isolated "nuclein" that is DNA along with related proteins from the cell nuclei in 1869. DNA as a definite molecule was 1st known by Friedrich Miescher. White blood cells usually abbreviated as WBC additionally called leukocytes are those cells that defend the body from contagious diseases additionally as foreign invaders that are observed as antigens. Thus, the right choice to this question is D that says that the contribution of Friedrich Miescher is that he extracted and discovered DNA from the white blood cells.
Learn more:
1. Learn more about proteins brainly.com/question/1420458
2. Learn more about DNA brainly.com/question/2416343
3. Learn more about replication brainly.com/question/1600165
Answer Details:
Grade: College Biology
Subject: Biology
Chapter: Molecular Biology
Keywords:
Genetic code, DNA, RNA, base pairs, protein synthesis, translation, transcription, double stranded, WBC, leukocytes, antigens, Friedrich Miescher, nuclein, cell nuclei.
the sequence of chemical reactions in photosynthesis is correct
The appendicular skeleton includes the bones of the limbs and their girdles. Of the options provided, the femur, humerus, and clavicle are all parts of the appendicular skeleton. The sternum, however, is part of the axial skeleton, making it the correct answer to the question.
The appendicular skeleton consists of the bones of the upper and lower limbs, as well as the bones that anchor these limbs to the axial skeleton, which includes the skull, the vertebral column, and the thoracic cage. The appendicular skeleton includes the bones of the arms (such as the humerus), the shoulder girdle (such as the clavicle), the legs (such as the femur), and the pelvic girdle.
However, the bone mentioned in options a), b) and c) are all part of the appendicular skeleton. The sternum, option d), is part of the axial skeleton, not the appendicular one. So, it is the right answer to the question. The sternum, or breastbone, forms the middle part of the front of the rib cage and is located in the center of the chest.
Learn more about Appendicular Skeleton here:
#SPJ11
The Sternum is not part of the appendicular skeleton, but of the axial skeleton. The other options, Femur, Humerus, and Clavicle, are all parts of the appendicular skeleton.
The question asks which bone is not part of the appendicular skeleton, with options being a) Femur, b) Humerus, c) Clavicle, and d) Sternum. The appendicular skeleton is primarily composed of the bones of the pectoral and pelvic limbs and girdles. In the options provided, the Sternum is not part of the appendicular skeleton, but rather, it is part of the axial skeleton which includes the skull, spinal column and thoracic cage, whereas the Femur, Humerus, and Clavicle are all part of the appendicular skeleton.
#SPJ2
Answer:
Fossil records provide evidence of an increase in animal species at the same time that atmospheric oxygen levels increased.
Explanation:
A huge diversification among animal species occurred with the increase in the levels of atmospheric oxygen. The reason why the number of species increased drastically was that a whole new world opened up, the land. The land was open for exploitation and taking over, with every single niche free, so animals diversified and filled in pretty much all of the niches. The fossil records give us clues when this happened, as from only microorganisms there is a sharp rise in complex animals, coinciding with the increase of oxygen levels.
If it wasn't for the increase of atmospheric oxygen though this wouldn't have been possible. The oxygen in the atmosphere enabled animals to breathe on land. Also, it cooled off the global temperatures which were too high before the increase of atmospheric oxygen, making them suitable for life. And last but not least, the atmospheric oxygen resulted in the formation of the ozone layer, a layer that started to act as protection from the UV rays.
Answer:fossil record
Explanation: