Novel combinations of alleles arise in prophase I and metaphase I.
In the process called Recombination.
Alleles are alternative forms of genes.
Parental chromatids are chromatids that have a combination of alleles identical to the parents and Recombinant chromatids are chromatids that have a mix of alleles from both parents.
either new organisms entered the population from an external source, or there were mutations
crossing over during meosis and or due to mutation.
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Alleles are alternative forms of genes.
Parental chromatids are chromatids that have a combination of alleles identical to the parents and Recombinant chromatids are chromatids that have a mix of alleles from both parents.
Mutations can change what protein a section of codes for. The production of different proteins would cause different physical development; a new allele or "trait".
either new organisms entered the population from an external source, or there were mutations
Generally when a species splits into two populations that are separated by some means that keeps the now individual gen pools from intermingling. This allows new alleles to arise in the separate populations and as time passes this frequency changes in alleles can give rise to new species.
Like 1235 or 8067? If you allow leading zeros, then 10 000. If you disallow leading zeros, then 9 000. * * * * * Those are the numbers of PERMUTATIONS, not COMBINATIONS. In combinations the order does not matter, so 1234 = 4312 = 2314 etc. The number of combinations is (10*9*8*7)/(4*3*2*1) = 210. The question of leading 0s does not arise because there is no order to the set of numbers in the combination so there is no "leading".
since income is arise out of sales we made during the year.
Micelles (My-cells) : tiny spherical complexes of emulsified fat that arise during digestion; most contain bile salts and the products of lipid digestion, including fatty acids, monoglycerides, and cholesterol.
Will arise (for example, I will arise).
You stop. And after that it all depends on where and why it hurts. Sex should not hurt.
Defeated troops who were unemployed - as in Germany in the 1920's.