Sister chromatids have different alleles although carry same genes on same loci. So if it doesn't happen so, like if there are same alleles on sister chromatids then there is a problem in its formation. i.e., male and female alleles haven't contributed equally ( may be an error during their segregation process ). And obviously it doesn't happen in a real cell so we must understand this point. Because normally whenever it happens there's one half from the male and one half from the female. (i.e. maternal and paternal alleles contribute equally).
I hope you get the answer!!!
Concrete<span>, pattern, or shape </span>poetry<span> is an arrangement of linguistic elements in which the typographical effect is more important in conveying meaning than verbal significance. It is sometimes referred to as </span>visual poetry<span>, a term that has now developed a distinct meaning of its own.
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A limerick<span> is a humorous </span>poem<span> consisting of five lines. The first, second, and fifth lines must have seven to ten syllables while rhyming and having the same verbal rhythm. The third and fourth lines only have to have five to seven syllables, and have to rhyme with each other and have the same rhythm.
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Covalent bond because a covalent bond is when it only shares electrons and it doesn't give or lose.
The heaviest elements settled in the Earth's center.
The Earth on the other hand starts with a core of iron and radioactive materials such as uranium and plutonium, which release energy in the form of heat, through a process known as nuclear fission. It went through a fusion stage - a "liquid-pasty" state - which allowed that, due to gravity, the denser materials sank towards the center, while the lighter ones floated towards the crust, a process called planetary differentiation.
the most recent year for which we have statistics available, 157,423people -- 86,689 men and 70,734women -- died from lung cancer in the U.S.
