Video: Dab tsi yog chromatid thiab chromosome?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Chromosomes muaj nruj packed DNA molecules thaum nyob rau hauv cov ntaub ntawv ntawm chromatids , DNA molecules tsis raug mob. A chromosome yog tsim los ntawm ib leeg, ob-stranded DNA molecule thaum a chromatid muaj ob DNA strands koom ua ke los ntawm lawv chaw nyob . Cov chromatids muaj cov khoom hu ua chromatin.
Ib yam li ntawd, tib neeg nug, pes tsawg chromatids nyob hauv chromosome?
ob chromatids
Tsis tas li ntawd, puas yog chromosomes tsim los ntawm chromatids? Tom qab replication, txhua chromosome yog tsim ntawm ob DNA molecules; nyob rau hauv lwm yam lus, DNA replication nws tus kheej nce tus nqi ntawm DNA tab sis tsis (tseem) nce tus naj npawb ntawm chromosomes . Ob daim ntawv luam zoo ib yam-txhua qhov tsim ib nrab ntawm cov ntawv luam tawm chromosome - npe chromatids.
Yog li ntawd, qhov txawv ntawm tus chromosome a chromatid thiab tus ntxhais chromosome yog dab tsi?
Cov duplicated chromosome ua ob-stranded chromosome thiab txhua txoj hlua hu ua a chromatid . Cov ua khub chromatids los tus muam chromatids nws thiaj li sib cais thiab ua lub npe hu ua tus ntxhais chromosomes . Thaum kawg ntawm mitosis, tus ntxhais chromosomes raug faib kom raug nruab nrab ob tus ntxhais hlwb.
Tib neeg muaj pes tsawg chromatids?
92 chromatid ua
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