Discussion
Home ‣ General Knowledge ‣ Biology Comments
- Question
Which best describes a tetrad?
Options- A. A diploid cell
- B. Two gametes
- C. Four chromatids
- D. A haploid cell
- Correct Answer
- Four chromatids
- 1. Haemophilia is a hereditary disease carried by
Options- A. females and expressed by males
- B. males and expressed by males
- C. females and expressed by females
- D. males and expressed by females Discuss
- 2. Appetite is triggered by
Options- A. stomach enzymes
- B. pancreatic enzymes
- C. physiological drive
- D. environmental cues such as the smell or taste of food Discuss
- 3. According to Erikson, the goal of adolescence is to
Options- A. independent identity
- B. explore who they are
- C. both a & b
- D. None of the above Discuss
- 4. When insulin is released, it causes
Options- A. Amount of glucose in blood decreases
- B. Amount of glucose in blood increases
- C. Amount of bile juice increases
- D. Amount of bile juice decreases Discuss
- 5. Which helps prevent errors in DNA replication?
Options- A. Complementary base pairing reduce errors
- B. DNA ligase checks the DNA for errors
- C. DNA is located in the ribosomes
- D. Any base can pair with any other base Discuss
- 6. Nodes of Ranvier are microscopic gaps found within:
Options- A. osteoblasts
- B. gland cells
- C. chondroblasts
- D. myelinated axons Discuss
- 7. In human body, the cell growth and differentiation are highly controlled and regulated, but in cancer cells
Options- A. there is breakdown of these regulatory mechanisms leading to formation of benign and malignant tumors
- B. controlled cell divisionand over-production of genetic material occur
- C. RNA is mutated and produced in less amount
- D. DNA is mutated and produced in less amount Discuss
- 8. Where the mature sperm are produced?
Options- A. Scrotum
- B. Vas deferens
- C. Prostate gland
- D. Testes Discuss
- 9. Which of the following are longest cells of human body?
Options- A. Pancreatic cells
- B. Epethelial cells
- C. Nerve cells
- D. Epidermal cells Discuss
- 10. Which component in tobacco makes it harmful for human consumption?
Options- A. Morphine
- B. Nicotine
- C. Heroin
- D. None of these Discuss
Biology problems
Search Results
Correct Answer: females and expressed by males
Explanation:
Haemophilia is an inherited bleeding disorder where the blood doesn't clot properly. It is caused when blood does not have enough clotting factor.
The main treatment for hemophilia is called replacement therapy. Concentrates of clotting factor VIII (for hemophilia A) or clotting factor IX (for hemophilia B) are slowly dripped or injected into a vein. These infusions help replace the clotting factor that's missing or low.
Correct Answer: environmental cues such as the smell or taste of food
Explanation:
Appetite is the desire to eat food, sometimes due to hunger. Appetite is triggered by environmental cues such as the smell or taste of food. Appealing foods can stimulate appetite even when hunger is absent.
Correct Answer: both a & b
Explanation:
According to psychologist Erik Erikson, Adolescence is the period of life between childhood and adulthood. They go through the psychosocial crisis of identity versus role confusion, which involves exploring who they are as individuals. During this stage, adolescents explore their independence and develop a sense of self i.e independent identity, ego nature.
Correct Answer: Amount of glucose in blood decreases
Explanation:
We know that, when we eat a meal, any carbohydrates we've eaten are broken down into glucose and passed into the bloodstream. This rise in blood glucose causes insulin to be released from the pancreas so glucose can move inside the cells and be used. As glucose moves inside the cells, the amount of glucose in the bloodstream returns to normal and insulin release slows down.
Correct Answer: Complementary base pairing reduce errors
Explanation:
DNA replication is the biological process of producing two identical replicas of DNA from one original DNA molecule. DNA replication occurs in all living organisms acting as the basis for biological inheritance. Complementary base pairing helps prevent errors in DNA replication.
Correct Answer: myelinated axons
Correct Answer: there is breakdown of these regulatory mechanisms leading to formation of benign and malignant tumors
Explanation:
In cancer cells, there is breakdown of these regulatory mechanisms. Normal cells show a property called contact inhibition by virtue of which contact with other cells inhibits their uncontrolled growth. Cancer cells appears to have lost this property. As a result of this, cancerous cells just continue to divide giving rise to masses of cells called tumors. Tumors are of two types: benign and malignant.
Correct Answer: Testes
Correct Answer: Nerve cells
Correct Answer: Nicotine
Comments
There are no comments.More in General Knowledge:
Programming
Copyright ©CuriousTab. All rights reserved.