In hens, the fertilisation of it's egg occurs inside the body where as in frogs, the fertilisation of eggs happen on the water that is, it is external. Again a hen's egg has a hard shell whereas the egg of a frog does not have a hard calcareous shell ,instead it is protected by a soft jelly like substance.this shows the different types of fertilization.
The process of translation involves three main types of RNA, including mRNA, tRNA, and rRNA, working together to decode information from DNA and build proteins in the ribosomes.
During the process of translation, mRNA decodes information from the original DNA master plan to build proteins in the ribosomes. This process involves three key types of RNA: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). The mRNA carries the genetic information copied from DNA in the form of a series of three-base code words, each of which specifies a particular amino acid.
The tRNA molecules act as adapter molecules, each able to carry a particular amino acid and recognise the appropriate codon in the mRNA. Through a series of steps, the tRNA molecules bind onto the mRNA and add their amino acid to the growing chain of amino acids that ultimately forms a functional protein.
Last but not least, the rRNA molecules come together with particular proteins to form a functional ribosome that facilitates the assembly of the amino acids into the new protein.
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Robert Hooke used a compound microscope to study tree bark, making important observations and coining the term "cell" in his book "Micrographia" published in 1665.
Robert Hooke, a renowned English scientist, used a compound microscope to study tree bark. In the 17th century, Hooke made significant contributions to microscopy and is best known for his book "Micrographia" published in 1665. In this book, he described his observations using a compound microscope, which had two or more lenses to magnify the specimen.
Hooke used a specially designed microscope with an adjustable lens system that allowed him to achieve high magnification and observe fine details of various objects, including tree bark. Using this microscope, he examined thin slices of cork and coined the term "cell" to describe the box-like structures he observed. Hooke's work with the compound microscope and his discoveries about cells laid the foundation for modern cell theory.
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The correct question is:
Which microscope did Robert Hooke use to study tree bark?
Answer:
Is made of phospholipids
Explanation:
The cellular compartment of all eukaryotes is bounded by a membrane called cell/plasma membrane. The membranes in cells are similar in structure and majorly composed of phospholipids that builds it.
The phospholipid component are arranged in two adjacent layers in biological membranes, hence, called phospholipid bilayer. The phospholipid bilayer is said to be AMPHIPATHIC because it contains two hydrophobic fatty acids and a hydrophilic phosphate head in its structure. This amphipathic nature of the cell membrane confers semi-permeability of substances upon it.
b. Panic. All signs indicate that it is an HIV infection.
c. It could be the flu, but it could also be an HIV infection. It is very important to be tested at a medical facility.
d. none of the above
Please select the best answer from the choices ...
Genetic drift is the answer