Question

explain the process 1 of meiosis 1

Answer 1

HEY HERE IS YOUR ANSWER.....


Describe the process that results i the formation of a tetrad. 2. Explainhow the random alignment of homologous chromosomes during metaphase I contributes to the variation in gametes produced bymeiosis.
.....✌

Answer 2

prophase 1 this is the complex and the longest to face it is divided into five substance namely leptotene ,zygotene, pachytene ,diplotene and diakinesis

leptotene:
1)the chromosomes undergo condensation spirlalization and become visible
2)even to the chromosomes have undergone duplication the chromatics remain invisible
3)the centrioles develop we can to move a path towards the opposite poles
4)bread like structures called chromosomes may be seen all along the length of the chromosomes these are highly called reasons of the chromosomes
5)in many animal cells the chromosomes are converging towards the central Somal end to form the bouquet stage the end of the chromosomes are attached to nuclear envelope by a structure called attachment plate

zygotene:

1)the human organs chromosomes undergo Paring this process is called synopsis there are three types of sentences procentrix starting from the centromere proterminal starting from the tips and random starting at many points
2)the pairing occurs in ""zipper ""like fashion the pairing of homologous chromosomes is due to the formation of the ladder like protein Complex called as synoptimal Complex this Aligans the human organs chromosomes accurately placing the corresponding genetic regions of the chromosome pairs opposite to each other like a scaffold
3)the paired homologous chromosomes are called bivalent

pachytene:

1)the pair of chromosomes become thick and short
2) the two chromatics of the chromosomes are called sister chromatids or diet and the chromatics of the two members of the human organs chromosomes are called non sister chromatids tetrads
3)the phenomenon of exchange of genetic material occurs between the non sister chromatids of each homologous pair of chromosomes
4)the tetrad show recombinase nodules at which site crossing over occurs this occurs by breakage by endonuclease and reunion by ligase enzymes complexes together known as recombinase
the exchange of genetic material between the two homologos chromosomes is called crossing over it result in the recombination of the gene in the chromosomes
5)the bivalent are composed of the four chromatic sense called as tetrads

diplotene:
1) the synoptomial Complex formed between the homologous chromosomes begin to dissolve
2)the human organs chromosomes repel each other and start separating this is known as the repulsion the homologous chromosomes are attached to certain"" X"" shaped region called as chaismata
the diplotene stage may be prolonged and arrested for 8 to 10 years in the human female from 5th month of fetal stage of 2 12th year during the start of ovulation
in the sides of vertebrates fishes amphibians reptiles and birds the deployed in chromosomes for giant and lampbrush chromosomes with lateral extend loops helping in transcription
of m-rna
r-rna to syntheses protein of yolk
3) the region's of crossing over where exchange of genetic material occurs between the nonsister. chromatids of the homologous chromosomes apprer to ""x"" shaped structure called chaisamta

diakinesis:

1)the chromosomes become very thick and short and fully condensed
2)the repairing of the bivalent continuous
3) the chaisamta slide towards the tips disappear one after another by moving towards the tips of the chromatid
this process is called terminalization
4) the nuclear membrane and nucleolus disappear and release the tetrads freely in the cytoplasm
5) the spindle fibers begin to form

hope it may help u

be brainly