The same reason that dice don't always roll numbers as expected. Random chance. genetic propagation of traits is much more complex and therefor even less predictable than dice.
Multiple factor inheritance
If it did not, the chromosome number would double in each generation.
its sexual reproduction
Reproductive success. You are not evolving, but your progeny will; if you have any.
The progeny cells of a B-cell clone are called plasma cells. Plasma cells are responsible for secreting large quantities of antibodies specific to a particular antigen.
a set chromosome define about progeny which could be male or female
The plural of progeny can be progeny or progenies.Like "offspring" progeny can refer to one person (child) or several (children).
Progeny are offspring, children
Dark Progeny was created in 2001.
Progeny is used in both the singular or plural.
The duration of Progeny - film - is 1.63 hours.
Progeny - film - was created on 1999-03-30.
Whenever one refers to an animals or humans offspring, such as; The mare's progeny were successful racehorses. Progeny is a fancy word for offspring.
During telophase one, homologous chromosome pairs complete their migration to the two poles. A nuclear envelope reforms around each chromosome set and cytokinesis begins. Cytokinesis results in two progeny cells equipped with a set of replicated chromosomes. After this cycle, many cells proceed to prophase two.
The immediate progeny of a man and a woman; and all the progeny's siblings.
My cats Progeny are overrunning our farm, anyone want a free cat?
His wife suspected that their progeny would all have large noses like his. The progeny of the original settlers built communities throughout the valley. The queen expected that her progeny, in their time, would likewise become monarchs of the realm.