If 15% of a DNA sample is made up of thymine, T, what percentage of the sample is made up of cytosine, C?

Answer: The correct answer is-

(2) mitosis of body cells.

Mitosis is a type of cell division in which a parent cell produces two daughter cells having same number of chromosomes as that of their parent cell.

It occurs through a series of 5 stages that are- Prophase, metaphase, anaphase, telophase, and cytokinesis.

It is responsible for the growth of organisms and the repair of damaged tissues (in case of multicellular organisms) as new, identical cells (that are identical to each other) are produced from the parent cell.

Thus, option 2) is the right answer.

Answer:

2) mitosis of body cells

Explanation:

Answer : The correct answer for the blank is- C) autoimmune response.

When the immune system of the body fails to recognize "self" that is its own body tissue/own antigens, it produces antibodies against it.  

Due to this, the body's own cells, tissues, or organs are targeted, which cause inflammation and damage to the body. This condition develops as autoimmune response.

Example - Multiple sclerosis ( in which an insulation called myelin sheath around nerve fiber is destroyed that affects the transmission of nerve impulse, thereby causing problems related to muscular control).

Digestion refers to the chemical and mechanical processes that break down food.

What is digestion?

Digestion is the process through which food moves through our bodies, with the goal of giving energy to the body or constructing new cellularcomponents and tissues, such as muscle and fat.

How does digestion take place?

• When food enters the mouth, it is mechanicallydigested (chewing) and becomes when it comes into touch with saliva. Saliva contains salivary amylase, which helps food digest starch. Salivaryamylase is a digestive enzyme that starts the digestion of starch in meals.
• The food will be in the form of a small, round slurry mass known as a bolus after mastication and starch digestion.It moves down the esophagus and into the stomach due to peristalsis.
• In the stomach, gastric fluids beginprotein digestion.Pepsin and hydrochloricacid are the main components of these juices. Because the HCl may harm the stomach wall, the stomach secretesmucus, which forms a sticky covering that protects the stomach from the acid's harmful effects.
• Peristalsis, a mechanical mixingprocess that permits the mass of food to interact with the digestiveenzymes, occurs concurrently with protein digestion.
• After some time, a thick liquid called chyme is produced, which enters the duodenum and mixes with pancreatic digestive enzymes and liver bile juice before passing through the smallintestine. After the chyme has been entirely digested, it is taken into the bloodstream, where it forms a stickybarrier that protects the body from the acid's harmful effects.

Thus, we can conclude that option A is correct.

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Answer:

Explanation

a. chloroplast

Some viruses uses Lysogenic cycle to insert the viraldna into the host cell dna before it enters a lytic cycle.

The lysogenic cycle also referred to as nonvirulent infection, includes the virus integrating its genome with the genome of the host cell in order to replicate without destroying the host. An example is the structure of a bacteriophage. To reproduce, the phage should first penetrate the host cell.

The lysogenic cycle is characterized by The phage infecting a bacterium and inserting its DNA into its chromosome, enabling the phage DNA (now known as a prophage) to be replicated and transferred on alongside the cell's own DNA.

The lytic cycle includes virus reproduction by utilizing a host cell to produce more viruses, which then ruptured out of the cell. The viral genome is incorporated into the host cell genome during the lysogenic cycle, infecting it from within.

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