Which of the following layers in an antral follicle is acellular?
Granulosa
Theca interna
Stroma
Stroma
D.
Stroma
Follicles that form an antrum during maturation are called antral follicle or Graafian follicle.
During the development of the follicle, a glycoprotein polymer capsule called the zona pellucida which is acellular, forms around the oocyte, separating it from the surrounding granulosa cells.
This layer remains with the oocyte after ovulation and contains enzymes that catalyse with sperm to allow penetration.
Most animals that in deep oceanic water are
primary consumers
secondary consumers
tertiary consumers
tertiary consumers
Coconut water from a tender coconut is
Immature embryo
Free nuclear endosperm
Innermost layers of the seed coat
Innermost layers of the seed coat
Which one of the following events in not associated with ovulation in human female?
Decrease in oestradiol
Full development of Graafian follicle
Release of secondary oocyte
Release of secondary oocyte
The introduction of t-DNA into plates involves
Infection of the plant by agrobacterium tumefaciens
Altering the pH of the soil, then heat-shocking the plants
Exposing the plates to cold for a brief period
Exposing the plates to cold for a brief period
The UN conference of Parties on climate change in the year 2012 was held at
Durban
Doha
Lima
Lima
During ecological succession
the gradual and predictable change in species composition occurs in a given area.
the establishment of a new biotic community is very fast in its primary phase.
the number and types of animals remain constant.
the number and types of animals remain constant.
If you suspect major deficiency of antibodies in a person, to which of the following would you look for confirmatory evidence?
Fibrinogin in plasma
Serum albumins
Haemocytes
Haemocytes
Increase in concentration of the toxicant at successive tropic levels is known as
biomagnification
biodeterioration
biotransformation
biotransformation
The DNA molecule to which the gene of interest is integrated for cloning is called
Transformer
Vector
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