Forelimbs of cat, lizard used in walking forelimbs of whale used in swimming and forelimbs of bats used in flying are an example of
analogous organs
adaptive radiation
homologous organs
homologous organs
C.
homologous organs
Homologous organs, are those organs which have a common fundamental anatomical plan and similar embryonic origin but perform varied functions. Forelimbs of cat, lizard used in walking, forelimbs of bats used in flying are the example for homologous organs. All are the modified forelimbs, with the same type of bones. They have become different due to the adaptions to the different habitat.
Which of the following is a hormone-releasing Intra Uterine Device (IUD)?
Multiload 375
LNG - 20
Cervical cap
Cervical cap
Commonly used vectors for human genome sequencing are
T-DNA
BAC and YAC
Expression vectors
Expression vectors
The main function of mammalian corpus luteum is to produce
estrogen only
progesterone
human chorionic gonadotropin
human chorionic gonadotropin
Tubectomy is a method of sterilisation in which
Small part of the Fallopian tube is removed or tied up
Ovaries are removed
Small part of vas deferens is removed or tied up
Small part of vas deferens is removed or tied up
A human female with Turner's syndrome
has 45 chromosomes with XO
has one additional X - chromosome
exhibits male characters
exhibits male characters
Assisted reproductive technology, IVF involves transfer of
ovum into the Fallopian tube
zygote into the Fallopian tube
zygote into the uterus
zygote into the uterus
In a population of 1000 individuals 360 belongs to genotype AA, 480 to Aa and the remaining 160 to aa. Based on this data, the frequency of allele A in the population is
0.4
0.5
0.6
0.6
Select the correct option describing gonadotropin activity in a normal pergnant female
High level of FSH and LH stimulates the thickening of endometrium
High level of FSH and LH facilitate implantation of the embryo
High level of hCG stimulates the synthesis of estrogen and progesterone
High level of hCG stimulates the synthesis of estrogen and progesterone
Which one of the following are analogous structures?
Wings of bat and wings of pigeon
Gills of prawn and lungs of man
Thorns of Bougainvillea and tendrils of Cucurbita
Thorns of Bougainvillea and tendrils of Cucurbita
