There are three partially black and one fully black horse. This is possible, as it satisfies the condition of one black horse and three white horses. There are 3 white horses and one black horse. This is what the passenger in the train observed, so it must be true. All four can be partially white and partially black. This is possible as well. All horses can have a combination of black and white color. There are 2 black horses and 2 partially black horses. This cannot be true because the observer in the train clearly saw one fully black horse and three white horses. Therefore, there cannot be two fully black horses. So, the statement that can never be true is option 4: "There are 2 black horses and 2 partially black horses."
Polyembryony is useful in the propagation of
Rust of rose is caused by
Membrane asymmetry can be counter – acted by enzymes that involved in transport of newly synthesized phospholipids
Which of the following pricing strategies is NOT common in rural marketing?
When both the allele of a gene express equally in heterozygote, it is known as
In which of the following condition nitrification occurs rapidly?
Match List-I with List-II and select the correct - answer using the codes given below the lists.
Inner and outer membrane of chloroplast together are called ____
Match List I with respective critical stage of irrigation of crops List II
Which of the following crop is usually grown in zaid season in Uttar Pradesh?
