How many contrasting characters were used by Mendel to formulate the laws of inheritance?
7
Gregor Johann Mendel, the "Father of Genetics", carried out his classic experiments on the garden pea (Pisum sativum) and studied 7 pairs of contrasting characters to formulate his laws of inheritance.
These seven traits were: seed shape (round/wrinkled), seed colour (yellow/green), flower colour (violet/white), pod shape (inflated/constricted), pod colour (green/yellow), flower position (axial/terminal) and stem height (tall/dwarf). By tracking how these clear-cut alternative forms passed to offspring, Mendel deduced the Laws of Dominance, Segregation and Independent Assortment.
The other options (5, 8 and 4) do not match the well-documented number of contrasting characters Mendel actually used, which is seven.
What is the primary mechanism through which sexual reproduction generates genetic diversity in the offspring?
Why does the amount of DNA NOT keep doubling during sexual reproduction in animals?
In humans, which parent determines the sex of the child?
What is the meaning of the phrase “the DNA copies generated will be similar, but may not be identical”?
Ancient hominids who are placed in the category of homo sapiens were -
A. Ergaster line
B. Cro - Magnon
C. Neanderthal
D. Proconsuls
Each polynucleotide of DNA is made up of small units called _____________.
A group of similar organisms which are genetically distinct and reproductively isolated, is called a/an -
The adaptor molecule in the process of translation is :
All human beings have ________ pairs of chromosomes in the nuclei of their cells.