Corpus luteum is
  • a)
    Outer part of the brain
  • b)
    Tissue joining two cerebral hemispheres
  • c)
    Remnant of the follicle in the ovary
  • d)
    Tissue in testes to produce testosterone E Inner part of the brain
Correct answer is option 'C'. Can you explain this answer?

Lonely answered  •  5 hours ago
The corpus luteum (plural: corpora lutea) is a temporary endocrine structure involved in ovulation and early pregnancy. ... The remnants of the follicle after ovulation is referred to as the corpus luteum and ranges from 2-5 cm in diameter but involutes as it matures.

In tracing the path of sperm, you would mention vasa deferentia before
  • a)
    Testes
  • b)
    Epididymis
  • c)
    Urethra
  • d)
    Uterus
Correct answer is option 'C'. Can you explain this answer?

Lonely answered  •  5 hours ago
The key male reproductive organs include the testes, epididymis, urethra, vas deferens, prostate gland, seminal vesicle, and penis. The ejaculation process begins as the penis fills with blood and becomes erect. With sufficient stimulation, mature sperm travels from the epididymis through the vas deferens, a muscular tube, which propels sperm forward through smooth muscle contractions. From the am... more

Which of the following compounds will react with 
two moles of  
 ?
  • a)
  • b)
  • c)
  • d)
Correct answer is option 'C'. Can you explain this answer?

Lonely answered  •  5 hours ago
Reaction of carboxylic acid with Grignard is shown above. It'll only consume 1 mole of CH3​MgBr.


CH3​C≡CCH3​ won't react with Grignard reagent because it doesn't have active H-atom.


In HC≡C−CH2​OH two active hydrogen atoms are present, hence it will react with two moles of CH3​MgBr (Grignard reagent) as shown below.


HC≡C−CH2​OH+2CH3​MgBr⟶2CH4​+BrM
... more

Which one of the following includes all the other lower taxa?
  • a)
    Class
  • b)
    Order
  • c)
    Genus
  • d)
    Species
Correct answer is option 'A'. Can you explain this answer?

Lonely answered  •  5 hours ago
The taxonomic ranks in descending order are domain, kingdom, phylum, class, order, family, genus and species. Higher taxon will comprise broader characteristic features and include features of its lower taxa. As a class would include order, family, genus and species.

Which one of the following membranes secretes a watery fluid that lubricates and cushions the joint?
  • a)
    Tendons
  • b)
    Synovial membrane
  • c)
    Ligaments
  • d)
    Cartilage
Correct answer is option 'B'. Can you explain this answer?

Lonely answered  •  5 hours ago
The synovial cavity is covered by the synovial membrane which secretes a watery fluid called synovial fluid for the lubricating and cushioning joint.

How many eggs will be formed from 100 primary oocytes
  • a)
    300
  • b)
    400
  • c)
    200
  • d)
    100
Correct answer is option 'D'. Can you explain this answer?

Ias Masters answered  •  8 hours ago
  • One primary oocyte will form one secondary oocyte and one polar body. One secondary oocyte will further form one ovum and one polar body and 1st polar body will produce two more polar bodies.
  • So 1 primary oocyte will eventually form one ovum. So, 100 primary oocytes will form 100 eggs.

A hormone secreted by the posterior lobe of the pituitary is concerned with
  • a)
    Contraction of uterine muscles
  • b)
    Secondary sexual characters
  • c)
    Stimulation of thyroids
  • d)
    Metabolism of carbohydrates
Correct answer is option 'A'. Can you explain this answer?

Stepway Academy answered  •  8 hours ago
Oxytocin is a hormone that acts on organs in the body and as a chemical messenger in the brain, controlling key aspects of the reproductive system, including childbirth and lactation, and aspects of human behaviour. Oxytocin is produced in the hypothalamus and is secreted into the bloodstream by the posterior pituitary gland. The posterior pituitary does not produce any hormones of its own, rather... more

In the human being, developing embryo remains in
  • a)
    Vagina
  • b)
    Uterus
  • c)
    Fallopian tube
  • d)
    Ovaries
Correct answer is option 'B'. Can you explain this answer?

Mohit Rajpoot answered  •  8 hours ago
After fertilization, the zygote undergoes cleavage and divisions, thereby forming the blastocyst, which gets implanted in the endometrium of the uterus. The blastocyst then divides further and develops inside the uterus only. The uterus is the womb and is a major female reproductive hormone. Thus, the correct answer is option b.

Which of the following statements are related to Bartholin's gland?
  • a)
    They secrete mucus to lubricate the vagina.
  • b)
    They are located at the opening of the vagina.
  • c)
    They are regulated by the level of progesterone.
  • d)
    Both A and B
Correct answer is option 'D'. Can you explain this answer?

Universal Academy answered  •  8 hours ago
The Bartholin's gland is the small glands which are located on the lateral and posterior sides of the vaginal opening. These glands are responsible for the secretion of the mucus which helps in the lubrication of the vaginal tract. The gland is considered as similar to the bulbourethral glands in males.

In human females, meiosis-ll is not completed until?
  • a)
    Puberty
  • b)
    Fertilisation
  • c)
    Uterine implantation
  • d)
    Birth
Correct answer is option 'B'. Can you explain this answer?

New Words answered  •  8 hours ago
At the end of meiosis I females have two daughter cells and meiosis II only occurs if and when the fertilization occurs by the sperm cell. Meiosis II starts after the sperm proceeds fertilization process in female 

Can anyone explain Asymmetric spindle in pollen grains in sweet and simple language ?

Rutuja Patil answered  •  9 hours ago
Asymmetrical spindle of pollen grain was first discovered by CYRIL DEAN DARLINGTON in 1936. According to him in pollen grains it results from stretching of spindle when one group of chromosome is obstructed by the wall
ex:- It can be observed in budding yeast mitotic division

The type of pseudocoelomates found in soil, 
freshwater and marine environments, and as 
parasites, are
  • a)
    nematodes
  • b)
    Trichinella
  • c)
    rotifers
  • d)
    Cycliphora
Correct answer is option 'A'. Can you explain this answer?

Lonely answered  •  17 hours ago
Nematodes are the most important pseudocoelomate animals, in terms of both numbers and their impact on humans. ... We are not aware of the millions of these worms in the soil, in ocean and freshwater habitats, in plants, and in all kinds of other animals.
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