Which of the following terms describe human dentition?
Thecodont, Diphyodont, Homodont
Thecodont, Diphyodont, Heterodont
Pleurodont, Diphyodont, Heterodont
Pleurodont, Monophyodont, Homodont
B.
Thecodont, Diphyodont, Heterodont
Thecodont: Teeth are present in the sockets of the jaw bone called alveoli.
Diphyodont: Teeth erupts twice, temporary milk or deciduous teeth are replaced by a set of permanent or adult teeth.
Heterodont dentition: Dentition consists of different types of teeth namely incisors, canine, premolars and molars.
Which of the following organisms are known as chief producers in the oceans?
Dinoflagellates
Diatoms
Euglenoids
Cyanobacteria
Ciliates differ from all other protozoans in
using flagella for locomotion
having a contractile vacuole for removing excess water
having two types of nuclei
using pseudopodia for capturing prey
Nissl bodies are mainly composed of
Proteins and lipids
DNA and RNA
Free ribosomes and RER
Nucleic acids and SER
Which of the following features is used to identify a male cockroach from a female cockroach?
Presence of a boat-shaped sternum on the 9th abdominal segment
Presence of caudal styles
Presence of anal cerci
Forewings with darker tegmina
Select the incorrect match :
Lampbrush – Diplotene bivalents chromosomes
Allosomes – Sex chromosomes
Polytene chromosomes – Oocytes of amphibians
Submetacentric chromosome – L-shaped chromosomes
Identify the vertebrate group of animals characterized by crop and gizzard in its digestive system
Amphibia
Reptilia
Osteichthyes
Aves
Which of the following events does not occur in rough endoplasmic reticulum?
Protein folding
Protein glycosylation
Phospholipid synthesis
Cleavage of signal peptide
