Podcast
Questions and Answers
Given that self-incompatibility is a genetic mechanism and the PMC is a cell of sporophytic generation, which statement is correct?
Given that self-incompatibility is a genetic mechanism and the PMC is a cell of sporophytic generation, which statement is correct?
- Both statements are incorrect.
- Only self-incompatibility is a genetic mechanism.
- Only the PMC is a cell of sporophytic generation.
- Both statements are correct. (correct)
Which of the following statements accurately describes the roles of different structures in an angiosperm anther?
Which of the following statements accurately describes the roles of different structures in an angiosperm anther?
- A typical angiosperm anther is characterized by being bilobed, with each lobe containing two theca. (correct)
- Microsporangia further develop into the embryosac directly facilitating fertilization.
- Epidermis, endothecium, and tapetum are primarily involved in dehiscence.
- The anther consists of a polygonal structure for structural support.
In which of the following is apomixis observed?
In which of the following is apomixis observed?
- Asteraceae
- Some grasses
- Citrus
- All of the above (correct)
Identify the incorrectly matched pair.
Identify the incorrectly matched pair.
What are the respective ploidy levels of the perisperm and the embryo sac?
What are the respective ploidy levels of the perisperm and the embryo sac?
Which statement accurately reflects the characteristics of AIDS?
Which statement accurately reflects the characteristics of AIDS?
Which of the following roles do hormone-releasing IUDs have?
Which of the following roles do hormone-releasing IUDs have?
Identify the procedure that is NOT a form of in-vitro fertilization.
Identify the procedure that is NOT a form of in-vitro fertilization.
Which statement about artificial insemination is incorrect?
Which statement about artificial insemination is incorrect?
Which of the following is least likely to be an early symptom of STDs?
Which of the following is least likely to be an early symptom of STDs?
Among which age group are STDs most commonly observed?
Among which age group are STDs most commonly observed?
In which city is the Central Drug Research Institute (CDRI) located?
In which city is the Central Drug Research Institute (CDRI) located?
Which statement accurately describes a characteristic of implant birth control methods?
Which statement accurately describes a characteristic of implant birth control methods?
What is typically used alongside barrier methods to enhance their contraceptive effectiveness?
What is typically used alongside barrier methods to enhance their contraceptive effectiveness?
Which of the following is a potential adverse effect of contraceptive methods?
Which of the following is a potential adverse effect of contraceptive methods?
During which period are MTPs (Medical Termination of Pregnancy) considered safe?
During which period are MTPs (Medical Termination of Pregnancy) considered safe?
Arrange the following events of early embryonic development in the correct sequence:
a) Formation of inner cell mass
b) Blastocyst becomes embedded
c) Uterine cells divide
d) Uterine cells cover blastocyst
e) Leads to pregnancy
Arrange the following events of early embryonic development in the correct sequence: a) Formation of inner cell mass b) Blastocyst becomes embedded c) Uterine cells divide d) Uterine cells cover blastocyst e) Leads to pregnancy
Which of the following statements accurately describes hormonal action in humans?
Which of the following statements accurately describes hormonal action in humans?
The secretory phase of the human menstrual cycle is also known as what, and how long does it typically last?
The secretory phase of the human menstrual cycle is also known as what, and how long does it typically last?
Which of the following do Leydig cells, found in the human body, secrete?
Which of the following do Leydig cells, found in the human body, secrete?
Flashcards
Self incompatibility
Self incompatibility
Genetic mechanism causing incompatibility in plants.
PMC
PMC
Cell of sporophytic generation
Dehiscence
Dehiscence
Epidermis, endothecium, and tapetum aid this process.
Theca
Theca
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Microsporangia
Microsporangia
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Apomixis
Apomixis
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Artificial insemination
Artificial insemination
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Early STD Symptoms
Early STD Symptoms
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STD age group
STD age group
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CDRI
CDRI
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Regarding implants
Regarding implants
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Barrier method addition
Barrier method addition
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Plant Structure
Plant Structure
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Role of the female reproductive system
Role of the female reproductive system
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Regarding Parturition
Regarding Parturition
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Gamete ploidy
Gamete ploidy
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Rejection of pollen
Rejection of pollen
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Ploidy of zygote
Ploidy of zygote
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Aggregate fruit
Aggregate fruit
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Leydig cells
Leydig cells
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Study Notes
- Self incompatibility is a genetic mechanism
- PMC is a cell of a sporophytic generation
- Epidermis, endothecium, and tapetum helps in dehiscence
- A typical angiosperm anther is bilobed with each lobe having two theca
- Microsporangia develop to form the embryosac
- Apomixis is observed in asteraceae, some grasses and citrus
- Phoenix dactylifera has 2000 years viability
- Orange has polyembryony
- Strawberry is a false fruit
- Castor is non-endospermous
- Perisperm and the embryosac can both either be 2n and n
- AIDS is a veneral disease caused by retro virus
- Hormone-releasing IUDs suppress sperm motility and make the uterus unsuitable for implantation
- ZIFT, ET and, GIFT are all in-vitro fertilization
- Artificial insemination involves introducing semen into the vagina or uterus
- In-vitro fertilization and artificial insemination are NOT the same thing
- Fluid discharge, swellings and slight pain are early symptoms of STDs
- STDs are very common among the 14-22 and 15-24 age groups
- CDRI is located in Lucknow
- Implants mode of action is similar to pills so progesterone alone can be used, also they are more effective than pills
- Spermicidal creams are used along with barrier methods to increase contraceptive efficiency
- Abdominal pain and irregular menstrual bleeding are ill-effects of contraceptive methods
- MTPs are considered safe when done within the first trimester
- The sequence of events is as follows: formation of inner cell mass, uterine cells divide, blastocyst becomes embedded, the uterine cell covers the blastocyst then it leads to pregnancy
- Estrogen is secreted by a growing ovarian follicle
- Both LH and progesterone attain peak in the middle of menstrual cycle
- In females, FSH and LH secretion increase during the luteal phase
- The secretory phase is also called the luteal phase that lasts for about 10 to 14 days
- Leydig cells are the secretory source of testicular hormones
- Perisperm, seed coat, funicle, cotyledon, aleurone layer, endosperm,epicotyls, plumule, hypocotyls, radicle, hilum and integument are related to genetical zygotes.
- Six structures are genetically identical to the zygote
- The female reproductive system facilitates ovulation, fertilization, pregnancy, childbirth and childcare
- Head of sperms are embedded in Sertoli cell after spermiogenesis
- Hair on the head does not occur at the end of the second trimester
- The following is the wrongly matched ploidy amount: primary oocyte - n and 4c
- Graafian follicle turns into corpus luteum with high level of LH
- Parturition is induced by the neuroendocrine mechanism
- Limbs and digits develop in the foetus at the end of the second month
- Chorionic villi are involved in the development of the placenta
- Inner cell mass differentiation starts before implantation
- Ovum, spermatid, second polar body, first polar body, and granulosa cells are haploid
- Mitochondria are present in the middle piece of the sperm
- Estrogen and relaxin are released by the ovary and not the placenta
- After one month of pregnancy, the heart is formed
- By the 3rd month's end, the organ system is formed
- After six months, external genitalia and the body covers with external hair
- The number of gametes in male gametophytes is less than the number of gametes in female gametophytes in the case of angiosperms and both male and female gametophytes have cells as haploid
- Aggregate fruit develops from monocarpellary syncarpous ovary
- Flowers with a bad odor are pollinated by flies
- Rejection of a pollen grain on the stigma may be due to chemical release by the pistil
- If ploidy of antipodal is diploid and that of PEN is 8n then the zygote has a ploidy of 3n
- A minimum number of 125 meiotic divisions are required to form 400 seeds when all seeds are from fertilization
- If the number of chromosomes in the male and female gamete is 14, the aleurone layer of wheat has 42
- A single ovary has multiple ovules of the mango
- Nucellus inside the seed develops into an embryo in mango and citrus
- The gametes of algae have the thickest cell wall
- Bamboo is not monocarpic
- Jackfruit is not a composite fruit
- Geitonogamy cannot occur in maize
- Edible pollen grain is present in Yucca plant
- Pollination by wind is generally absent in groundnut
- Bright color is NOT a feature of pollination by bat
- Attracting insects is not an advantage of seeds
- Dicliny prevents self-pollination
- Perisperm is present in salvia, lythrum and black pepper
- Xenogamy is not possible in pea
- Microsporangia and pollen sac have pollen grain
- The vegetative cell of pollen grain has an irregular shape nucleus
- Interstitial cells and Leydig cells are endocrine tissues of the testes
- Leydig cells which are responsible for synthesizing androgen are present in interstitial space outside the seminiferous tubule
- Seminal plasma in humans is rich in fructose, calcium, and certain enzymes
- In spermatogenesis, reduction division occurs during the conversion of primary spermatocytes to secondary spermatocytes
- The male reproduction system consists of a pair of testes, accessory ducts, glands, and a pair of external genitalia
- Spermiation occurs when spermatids transform into spermatozoa
- GnRH which is secreted by the pituitary glands stimulates the secretion of LH and FSH, that is incorrect regarding spermatogenesis
- Tertiary follicle changes into immature follicle called Graafian follicle that is an incorrect statement about the menstural cycle
- The inner layer of the uterus is the endometrium
- The Oviduct joins to the uterus by the ampulla
- During the menstrual cycle, the cyclical changes take place in the endometrium
- A decrease in estradiol is not associated with ovulation in the human female
- The cervix lies between the uterus and vagina
- The secondary oocyte is haploid
- Ectopic pregnancy is referred to the implantation of an embryo at a site other than the uterus
- Fertilization in humans is practically feasible only if the ovum and sperm are transported simultaneously to the ampulla of the fallopian tube
- Meiosis 2 in human females does not complete until fertilization
- The urethral meatus refers to the external opening of the urinogenital duct
- Zygotes are collected from a female donor and transferred to the uterus
- The correct surgical procedure as a contraceptive method is vasectomy
- Diaphragms are contraceptive devices used by females they are placed to cover the cervical region and act as physical barriers for sperm entry
- Condoms are barriers made of thin rubber/latex sheath that can prevent conception and the use of condoms has increased in recent years due to its additional benefit of protecting the user from contracting STDs and AIDS
- Spermicidal creams, jellies, and foams are usually used along with condoms, diaphragms, cervical caps, and vaults to block the entry of sperm into the female genital tract and increase contraceptive efficiency
- As a method of sterilisation tubectomy is where a small part of the fallopian tube is removed or tied up
- A multi load is a non-hormone-releasing Intra Uterine Device (IUD)
- Assisted reproductive technology, IVF involves the transfer of a zygote into the uterus
- Hysterectomy is the surgical removal of the uterus
- As an infertility treatment, Gamete intra fallopian transfer (GIFT) is where a childless couple can be assisted to have a child through a technique
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