Explanation

• M13 is a bacteriophage (a virus that infects bacteria) that is commonly used for phage display techniques.
• Phage display is a laboratory technique used to display peptides or proteins on the surface of phages, such as M13, to select and evolve specific binders or enzymes.

Explanation

• The main constituent of Permalloy is nickel-iron.
• Permalloy is a nickel-iron magnetic alloy, with about 80% nickel and 20% iron content, and is used as a magnetic core material in electrical and electronic equipment, as well as in magnetic shielding to block magnetic fields.

Explanation

• The new classification of acid and base, based on the description of the proton, was given by Johannes Brønsted and Thomas Lowry.
• They defined an acid as a compound that donates a proton (H+) and a base as a compound that accepts a proton.
• This definition is broader than the Arrhenius definition, which is limited to aqueous solutions, and it has been widely accepted and used in chemistry.

Explanation

• Peptidoglycan, also known as murein, is a polymer of N-acetylglucosamine (GlcNAc) and N-acetylmuramic acid (MurNAc) that forms the cell wall of bacteria.
• It is composed of a backbone of alternating GlcNAc and MurNAc residues, cross-linked by short peptides.

Explanation

• The four layers of the TCP/IP stack (also called the DoD model) are Application/Process, Host-to-Host, Internet, and Network Access.
• The Host-to-Host layer is equivalent to the Transport layer of the OSI model.

Explanation

Explanation

The earliest recorded pandemic, the Black Death, was speculated to be caused by the bubonic plague.

Explanation

• Distance = 12 cm = 120 mm (since 1 cm = 10 mm)
• Time = 60 s
• Average speed = Distance / Time = 120 mm / 60 s = 2 mm/s = 2 mms¹
• So, the snail's average speed is indeed 2 mms¹.

Explanation

"Security can be set through passwords, kerberos tickets, or certificates, Secure access to your EC2 AMIs is controlled by passwords, Kerberos, and 509 certificates, and Most of the system image templates that Amazon AWS offers are based on Red Hat Linux." all are the correct statements.

Explanation

• In Al2Cl6, each chlorine atom shares two electrons with the aluminum atom, forming a covalent bond.
• This means that each chlorine atom donates two electron pairs to the bond.