GOAL MBBS

2021-07-22 08:56:20 Some important points - Human Reproduction :-

• Uterus also called womb.

• Longest unstripped muscles of the body are found in the walls of uterus. (During pregnancy)

• Clitoris is a homologous to the penis in the male.

• Bartholin Glands : It is homologous to Cowper's gland of male

• A functional mammary gland is characteristic of all female mammals.

• The milk produced during the initial few days of lactation is called colostrum which contains antibodies (IgA) absolutely essential to develop resistance for the new-born babies.

•Liberation of sperms from Sertoli cells of seminiferous tubules is called spermiation.

• Liberation of sperms from testes is called semination.

• Liberation of sperms from body of male is called ejaculation .

•Mammalian sperms are transfered to vagina of female by the process called insemination.

• In 1 ml of semen, 20 to 120 millions of sperms are present in human being.

• Leydig's cells mature at 10 yrs. of age.

• In humans (and most vertebrates), the first polar body does not undergo meiosis II.

• The first polar body is, therefore, formed merely to get rid of unwanted chromosomes.

• 65-74 days are required to complete the cycle of spermatogenesis in human being. Open / Comment

2021-07-21 18:14:13 What type of notes or content you need for Neet ?
Comment below. Open / Comment

2021-07-21 18:10:12 Some important points - Human Reproduction :-

• Uterus also called womb.

• Longest unstripped muscles of the body are found in the walls of uterus. (During pregnancy)

• Clitoris is a homologous to the penis in the male.

• Bartholin Glands : It is homologous to Cowper's gland of male

• A functional mammary gland is characteristic of all female mammals.

• The milk produced during the initial few days of lactation is called colostrum which contains antibodies (IgA) absolutely essential to develop resistance for the new-born babies.

•Liberation of sperms from Sertoli cells of seminiferous tubules is called spermiation.

• Liberation of sperms from testes is called semination.

• Liberation of sperms from body of male is called ejaculation .

•Mammalian sperms are transfered to vagina of female by the process called insemination.

• In 1 ml of semen, 20 to 120 millions of sperms are present in human being.

• Leydig's cells mature at 10 yrs. of age.

• In humans (and most vertebrates), the first polar body does not undergo meiosis II.

• The first polar body is, therefore, formed merely to get rid of unwanted chromosomes.

• 65-74 days are required to complete the cycle of spermatogenesis in human being. Open / Comment

2021-07-21 16:17:50 Today at 7 pm to unlock the free class use code monika Open / Comment

2021-07-21 16:17:49 https://unacademy.com/course/biology-test-on-new-pattern-2021-2022/Q69OYL08 Open / Comment

2021-07-21 16:12:14 Important Points Of The Chapter “Sexual Reproduction in Flowering Plants”

Flowers are morphological & embryological & embryological structures and the sites of sexual reproduction.


The tapetum (innermost layer) nourishes the developing pollen grains. Cells of the tapetum posses dense cytoplasm and generally have more than one nucleus.

Pollen grain (male gametophyte): Generally spherical. 25-50 mm in diameter. Cytoplasm is surrounded by a plasma membrane.

Exine is made up of sporopollenin (highly resistant organic material).

Intine is a thin and continuous layer made up of cellulose and pectin.

In over 60% of angiosperms, pollen grains are shed at and pectin.

A typical mature angiosperm embryo sac is 8- nucleate and hilum.

Cleistogamous flowers produce assured seed-set even in the absence of pollinators.

Xenogamy brings genetically different types of pollen grains to the stigma.

In sea grasses, female flowers remain submerged in water. Pollen grains are long and ribbon like

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#UNMUTE_THIS_CHANNEL Open / Comment

2021-07-21 07:29:37 Today at 10 am dropper batch starting from today enroll now Open / Comment

2021-07-21 07:29:37 https://unacademy.com/course/detailed-course-on-diversity-in-living-organisms/ZQQYT56R Open / Comment

2021-07-21 06:18:44 IMPORTANT DATES TO REMEMBER
From January to December.


January:-
30- National antileprosy day.


Feb:-
4- world Cancer Day,
28- National science day

March:-
3- world wildlife day,
8- international women's Day,
2nd Thursday of march- world kidney day,
20- world sparrow day,
21- world forestry day,
22- world water Day,
24- world TB day

April:-
7- world health day,
17- world haemophilia day,
22- earth Day,
25- world malaria day,
last Saturday- veterinary day

May:-
1- labour day,
3- asthma day,
8- red cross day,
9- thalassemia day,
2nd sunday- mother's Day,
12- hypertension day,
19- hepatitis day,
22- international biodiversity day,
25- thyroid day,
31- No tobacco day

June:-
5- Environment day,
14- blood donors day,
3rd sunday- father's Day,
21- yoga day,
26- international day against drug abuse and illicit trafficking

July:-
1- Doctors day(India),
11- population day,
29- international Tiger day

Aug:-
1to7- world breastfeeding week,
12-elephant/youth day,
20- malaria day,
29- mosquito day/national sports day

Sept:-
1to7- National nutrition week,
5- world spinal chord injury day,
16- ozone day,
21- Alzheimer's day,
last Sunday- world heart day,
28- rabies day

Oct:-
1st monday- universal children day,
1- national voluntarily blood donation day/world senior citizens day,
3- world habitat day,
4- world animal welfare day,
10- mental health day,
2nd Thursday- world sight day,
16- world food Day,
21- global I2 deficiency day

Nov:-
1- world ecology day,
7- world Cancer awareness Day,
14- diabetes day,
17- epilepsy day,
21- fisheries day

Dec:-
1-AIDS day,
2- National pollution prevention in India to mark the Bhopal gas tragedy,
5- soil day,
10- human rights day,
14- nat energy conservation day,
23- kisan farmers day

#UNMUTE_THIS_CHANNEL Open / Comment

2021-07-21 06:05:57 Important Points Of The Chapter “Sexual Reproduction in Flowering Plants”

Flowers are morphological & embryological & embryological structures and the sites of sexual reproduction.


The tapetum (innermost layer) nourishes the developing pollen grains. Cells of the tapetum posses dense cytoplasm and generally have more than one nucleus.

Pollen grain (male gametophyte): Generally spherical. 25-50 mm in diameter. Cytoplasm is surrounded by a plasma membrane.

Exine is made up of sporopollenin (highly resistant organic material).

Intine is a thin and continuous layer made up of cellulose and pectin.

In over 60% of angiosperms, pollen grains are shed at and pectin.

A typical mature angiosperm embryo sac is 8- nucleate and hilum.

Cleistogamous flowers produce assured seed-set even in the absence of pollinators.

Xenogamy brings genetically different types of pollen grains to the stigma.

In sea grasses, female flowers remain submerged in water. Pollen grains are long and ribbon like

━━━━━━━━━✦✗✦━━━━━━━━━
#UNMUTE_THIS_CHANNEL Open / Comment