Question

QUESTION 8

1. In eukaryotic cells, ________ are energy-producing organelles that contain DNA.

   		chromosomes
   		lysosomes
   		mitochondria
   		nucleoli
   		nuclei

QUESTION 9

1. Name the single individual whose work in the mid-1800s contributed to our understanding of the particulate nature of inheritance as well as the basic genetic transmission patterns. With what organism did this person work?

   		Calvin Bridges; Drosophila
   		Thomas Hunt Morgan; Drosophila
   		Gregor Mendel; Pisum sativum
   		George Beadle; Neurospora
   		Boris Ephrussi; Ephestia

Answer 1

Answere :

Question 8 : The correct option is mitochondria

Explanation : Mitochondria are are energy-producing organelles that contain a small, double-stranded, circular DNA molecule in eukaryotic cell. Mitochondria are also called "power-house of cell". It is site of cellular respiration in eukaryotic cell.

Question 9 : The correct option is Gregor Mendel; Pisum sativum.  

Explanation : Gregor Mendel was the father of genetics and the first to study pea plants(Pisum sativum). He was also an Australian monk and a gardener. He worked in mid-1800s and contributed to our understanding of the particulate nature of inheritance as well as the basic genetic transmission patterns.

He discovered the basic laws of heredity while breeding pea plants. Three important laws proposed by Mendel to explain how traits inherited are : Law of Dominance, Law of Independent segregation and Law of independent assortment.

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