Sickle cell anaemia induce to
Change of amino acid in a- chain of haemoglobin
Change of amino acid in b- chain of haemoglobin
Change of amino acid in both a and b chains of haemoglobin
Change of amino acid either a or b chains of haemoglobin
Correct Answer :
B. Change of amino acid in b- chain of haemoglobin
Related Questions
Human eggs are
Mesolecithel
Microlecithel
Macrolecithel
Alecithel
Which one of the following is produced early in the life of a human female?
Relaxin
Oxytocin
Prolactin
Progesterone
In menstrual cycle the secretory phase is also known as
luteal phase and lasts for 6 days
Luteal phase and lasts for 13 days
Follicular phase and lasts for 13 days
Follicular phase and lasts for 6 days
The most important region of the decidua for the nourishment of the conceptus is the deciduas
Frondosum
Capsularis
Parietalis
Basalis
The surgical method of contraception in males
Hysterectomy
Vasectomy
Castration
Circumcision
Cell division that occurs in zygote is called
meiosis
Mitosis
Cleavage
Differentiation
In humans female ovulation occurs during menstrual cycle
At the end of proliferative phase
At the beginning of proliferative phase
Before the end of secretary phase
In the middle of secretary phase
Most of major organs of human embryo are formed by the
16th week of pregnancy
15th week of pregnancy
14th week of pregnancy
12th week of pregnancy
Layers of ovum from outside to inside are .
Corona radiata, zona pellucida, vitelline membrane
Zona pellucida, corona radiata, vitelline membrane
Vitelline membrane, zona pellucida, corona radiata
Zona pellucida, vitelline membrane, corona radiate
Fertilization of the ovum takes place in
Ovary
Uterus
Fallopian tube ampulla
Cervix
Which cells provide nutrition to the sperms?
Sertoli cells
Leydig cells
Crypt cells
Semniferous tubules
Menstrual phase is followed by .
Luteal phase
Follicular phase
Fertilization
Implantation
Chorionic gonadotropin is secreted by ...
Pituitary
Ovary
Placenta
Uterus
Which one occurs first in the human embryo
Neurogenesis
Cardiogenesis
Hepatogenesis
Osteogesis
The middle piece of the sperm contains
Protein
Nucleus
Mitochondria
Centriole
What is the best sperm extraction technique for men with obstructive azoospermia?
TESE - Microsurgical testicular sperm extraction
Percutaneous Epididymal Sperm Aspiration (PESA)
Intra cytoplasmic sperm injection ( ICSI)
Fine needle aspiration
In uterus, endometrium proliferates in response to ...
Relaxin
Oxytocin
Progesterone
Oestrogen
What is the name of the inner lining of the uterus?
Myometrium
Endometrium
Epithelium
Endothelium
The part of the sperm containing proteolytic enzymes to digest the zona pellucida is the:
Capacitor
Head
Corona
Acrosome
A child's blood group is 'o'. The parent's blood groups cannot be
A AND B
A AND A
AB AND O
B AND O
Haemophilia is more common in males because it is a
Recessive character carried by y-chromosome
Dominant character carried by y-chromosome
Dominant trait carried by x-chromosome
Recessive trait carried by x-chromosome
Haemophilic man marries a normal woman. Their off springs will be
All haemophilic
All boys haemophilic
All girls haemophilic
All normal
Acrosome occurs in the sperm in
Tail part
Behind the nucleus
Middle piece
Tip
Sertoli cells are found in
Seminiferous tubules
Ovaries
Prostate gland
Semen
Cryptorchidism is ...
Nondescent of testes in scrotum
Nondevelopment of testes
Removal of scrotum
Breaking connection of vas deferens
Which part of the ovary act as an endocrine gland in human beings
Stroma
Vitteline membrane
Graffian follicle
Epithelium
What are the chances of a normal fertile couple having a baby in one year?
40%
80%
20%
50%
At the end of meiosis I, the Oocyte yields
Secondary Oocyte and first polar body
First polar body
Secondary Oocyte
Second polar body
The gonadotropic hormones are secreted by
Anterior pituitary
Posterior pituitary
Adrenals
Ovaries
Immediately after ovulation, the ovum is covered by a membrane called
Chorion
Zona pellucida
Corona radiata
Vitelline membrane