AP BIOLOGY

HEREDITY

MUTATIONS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the definition of polyploidy?
A
Semi-aquatic, egg-laying mammal of action.
B
Condition where an organism has extra sets of chromosomes.
C
Genetic mutation that causes old men to lose their hair.
D
Condition where an organism lacks chromosomes.
Explanation: 

Detailed explanation-1: -polyploidy, the condition in which a normally diploid cell or organism acquires one or more additional sets of chromosomes. In other words, the polyploid cell or organism has three or more times the haploid chromosome number.

Detailed explanation-2: -Polyploidy is the heritable condition of possessing more than two complete sets of chromosomes. Polyploids are common among plants, as well as among certain groups of fish and amphibians. For instance, some salamanders, frogs, and leeches are polyploids.

Detailed explanation-3: -These figures are multiples of seven. As a result, the basic monoploid number 7 produces species that are diploid, triploid, tetraploid, pentaploid, hexaploid and octaploid. All of these other than the diploids are called polyploids. Natural populations rarely experience ploidy levels higher than tetraploids.

Detailed explanation-4: -Polyploidy, also known as whole genome duplication, refers to a cell or organism that contains more than two basic sets of chromosomes.

Detailed explanation-5: -Allopolyploidy, Autopolyploidy, and Auto-Allopolyploid are the three types of polyploidy. It has been found that due to polyploidy, different variation chromosomes can be seen.

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