Question
What is colostrum? How is milk production hormonally regulated?
✓
Answer
The first milk comes from the mammary glands of the mother just after parturition for few days is called colostrum. It contains several antibodies (mainly IgA), that provide passive immunity to the new-born baby. Secretion and storage of milk generally begins after birth of young one, usually within 24 hours under the influence of hormone prolactin secreted by anterior lobe of the pituitary gland. The ejection of milk is stimulated by the hormone oxytocin released from the posterior lobe of the pituitary gland.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Answer the following questions:
Give two reasons why Mendel selected garden pea for his experiments. Give the biological name of this plant.
Give two reasons why Mendel selected garden pea for his experiments. Give the biological name of this plant.
- State the type of gametes shown in the diagram.
- Identify the process taking place and the resultant structure.
- Name an organism that reproduces in this manner.
- What do ‘Y and ‘B’ stand for in ‘YAC’ and ‘BAC’ used in Human Genome Project (HGP)? Mention their role in the project.
- Write the percentage of the total human genome that codes for proteins and the percentage of discovered genes whose functions are known as observed during HGP.
- Expand ‘SNPs’ identified by scientists in HGP.
Give the effects of water pollution on human health.
Bt cotton is resistant to pest, such as lepidopteron, dipterans and coleopterans. Is Bt cotton also resistant to other pests as well?
What is transpiration? Describe mechanism of opening and closing of stomata.
Differentiate the following and give examples:
Innate and acquired immunity.
Innate and acquired immunity.
How is blood glucose level maintained?
What is superovulation and embryo trasnfer? How are they related?
- Write two differences between Homo erectus and Homo habilis.
- Rearrange the following from early to late geologic periods: