Trisomy for most autosomes is fatal, yet trisomy or even tetrasomy (four copies) of the x chromosome is not. what is the explanation for this difference? view available hint(s)trisomy for most autosomes is fatal, yet trisomy or even tetrasomy (four copies) of the x chromosome is not. what is the explanation for this difference? the x chromosome does not carry any genes. only one copy of the x chromosome is functional within any given cell, regardless of the total number of x chromosomes. there is a mechanism to keep only two x chromosomes functional, regardless of the total number. the number of x chromosomes is always balanced by the number of y chromosomes.

hey bro i looked it up on google the structure of the eye-spot in euglena viridie, e. ehrenbergii, and phacus pyriyorme is not as franzé haa described it. the so-called “crystal body” and “lens bodies” were not found in any of the individuals of the species examined by me. as earlier observers have stated, the eye-spot consists simply of a mass of pigment granules arranged in a single layer, and probably embedded in a protoplasmic framework, but the latter could not be seen, and its presence was only inferred from the fact that the pigment granules must be held together in some way, thd the eye-spot as a whole is capable of expansion, and that the pigment granules can be separated from each other.

hope this   and an i get brainlsiest

lizards have adapted to life in the desert. some desert lizards have toes with spiny scales to them run across the sand without sinking. some use the sand to hide from predators, or to search for small animals that they prey upon.

the sugar-phosphate backbone forms the structural framework of nucleic acids, including dna and rna. this backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.

the answer is d. exposing corruption in the church