Download App

Sexual Reproduction in Flowering Plants — BIOLOGY STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 ScienceBIOLOGYSexual Reproduction in Flowering Plants3 Marks
Question
Name the initial cell from which this structure has developed.
✓

Answer

Zygote.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "3 Marks Question" from Sexual Reproduction in Flowering Plants→Sexual Reproduction in Flowering Plants — all question types→BIOLOGY STD 12 Science question papers→Bihar Board STD 12 Science question papers→Bihar Board question paper generator→

Similar questions

Explain the zygote intra fallopian transfer technique (ZIFT). How is intra uterine transfer technique (IUT) different from it?
→
Some parents wrote a complaint letter to the local municipality to remove all the hoardings in the city, advertising the use of condoms and matters relating to AIDS prevention. The children of these parents came to know about the matter and raised their voice against removal of the hoardings. The parents were convinced by the awareness level of their children and withdrew the complaint.
  1. Parents considered the hoarding as inappropriate. Do you agree/ disagree with their view?
  2. What are the methods by which AIDS spreads?
  3. What is AIDS?
  4. What values are promoted by the children protesting against their parents?
→
The basic essence of Darwinism regarding evolution is natural selection. - Explain.
→
What is cancer? How is a cancer cell different from the normal cell? How do normal cells attain cancerous nature?
→
Describe the various methods of birth control.
→
  1. A tRNA is charged with the amino acid methionine.
  1. Name the process involved in the attachment.
  2. Point out the mRNA codon and anticodon on RNA for this amino acid.
  1. What is heterochromatin?
→
Seeing a crowd of students in one corner of the school, the principal rushed to see the matter and found some children beating and chasing a small lizard. On seeing the principal, all the children fled to their classes except Alok who requested the principal to arrange for some medical assistance for the injured animal. The principal rewarded Alok for his attitude to save guard our biodiversity.
  1. Mention the factors resulting in loss of biodiversity
  2. Was Alok an indisciplined boy, who did not run to the class on seeing the principal? What values does the act promote?
→
  1. Sickle celled anaemia in humans is a result of point mutation. Explain.
  2. Write the genotypes of both the parents who have produced a sickle celled anaemic offspring.
→
Explain the steps involved in the production of genetically engineered insulin. Name the source from which insulin was extracted earlier. Why is this insulin no more in use by diabetic people?
→
Recently a girl baby has been reported to suffer from haemophilia. How is it possible? Explain with the help of a cross.
→