Crossword-Solution: ZYGOTES 7 letters, 6 clues 🏆 scrabble score: 20

Secondly, there are those variations which occur in zygotes of similar germinal constitution and which are caused solely by differences in the environment to which the individuals are respectively exposed: these are the "acquired characters" of Lamarck and of authors generally.

Thus supposing _M_ to represent a modification acquired in the male and _m_ the absence of the modification, such as the feathered antenna of a moth, and the sex-chromosomes to be _X_ and _Y_, then we should have in the gametocytes-- Male Female _MM mm_ _XX XY_ Gametes _MX, MX: mXmY_ Zygotes _MmXX male, MmXY female_, and the character _M_ would only appear in the male because it only develops in association with _XX_ in the somatic cells descended from the male zygote.

Owing to their peculiar power of growth and the relatively large size to which they attain, many of the properties of zygotes are appreciable by observation.

Gametes represented by small and zygotes by larger circles.] We may now proceed with the help of the accompanying scheme (Fig.

The crossing of rose with pea results in a reshuffling of the factors concerned, and in accordance with the principle of segregation some zygotes are formed in which neither of the modifying factors R and P are present, and the single character can then become manifest.