Dr.NC Mock Test 1

What is the mathematical relationships between the number of chromosomes and the number of homologous pairs?

• there is no mathematical relationship between the number of chromosomes and the number of homologous pairs

• the number of chromosomes is related directly to the age of the organism, so the number of homologous pairs changes

• there in only one chromosome in each homologous pair

• there are one half as many homologous pairs as there are chromosomes

Hydra reproduce through ___________________, where the offspring grows from the body of the parent organism.

• budding

• DNA

• thymine

• mutations

If fission takes place every 20 minutes in some bacteria, then starting with one bacterial cell, how many bacterial cells would be produced in the span of 4 hours?

• 512

• 360

• 1024

• 4096

A sea star has one of its arms break off. That arm grows into its own separate organism through ____________________.

• sexual reproduction

• regeneration

• spindle fibers

• chromosomes

Which animals have developed capacity of regeneration ?

• Hydra, Starfish

• Plasmodium

• Earthworm

• Spongilla

Bryophyllum daigremontianum reproduces by

• Vegetative propagation

• Budding

• Fission

• Fragmentation

PARTHENOGENESIS OCCURS IN

• ROTIFERS

• HONEY BEES

• TURKEY

• ALL OF THE ABOVE

IF THE NUMBER OF CHROMOSOME IN POTATO LEAF IS 48 THEN WHAT WILL BE THE NUMBER OF CHROMOSOME IN ZYGOTE,GAMETE AND ENDOSPERM RESPECTIVELY?

• 24,24,72

• 48,24,72

• 24,48,72

• 72,48,24

Where are spermatozoa stored while they are maturing?

• In the prostate

• In the epidymis

• In the testes

• In the seminal vesicle

Where is the genetic material (DNA) located in the spermatozoa?

• In the head

• In the tail

• In the middle piece