Puas yog chromosome tus naj npawb ntawm housefly?

Cov txheej txheem:

Puas yog chromosome tus naj npawb ntawm housefly?
Puas yog chromosome tus naj npawb ntawm housefly?
Anonim

Lub tsev, Musca domestica L., muaj diploid chromosome ntxiv ntawm 12, suav nrog tsib khub ntawm autosomas thiab ib khub heterochromatic txiv neej chromosomes, XX lossis XY (Stevens 1908; Perje 1948)..

Puas muaj chromosomes housefly muaj?

Nyob hauv tsev, tus naj npawb ntawm chromosomes hauv lub cell somatic yog 12. Yog li ntawd, meiocytes kuj muaj 12 chromosomes.

Yuav muaj pes tsawg haploid chromosomes muaj pes tsawg leeg?

Lub tsev ya, Musca domestica, muaj tus lej chromosome ntawm haploid 6.

pes tsawg chromosomes ib tug earthworm muaj?

Tus naj npawb ntawm chromosomes tsis cuam tshuam nrog qhov pom tseeb ntawm cov tsiaj lossis cov nroj tsuag: hauv tib neeg, piv txwv li, tus lej diploid yog 2n=46 (uas yog, 23 khub), piv nrog 2n=78, los yog 39 khub, nyob rau hauv tus dev thiab 2n=36 (18) nyob rau hauv cov av ntau.

tib neeg puas muaj 24 chromosomes?

"Tib neeg muaj 23 khub ntawm chromosomes, thaum tag nrho lwm cov apes zoo (chimpanzees, bonobos, gorillas thiab orangutans) muaj 24 pairs ntawm chromosomes, "Belen Hurle, Ph.

Pom zoo:

Nthuav cov khoom
Lo lus prosodically txhais li cas?
Nyeem ntxiv

Lo lus prosodically txhais li cas?

hais txog lub suab thiab lub suab (=txoj kev tus neeg hais lus lub suab nce thiab ntog) ntawm cov lus: Prosodic nta ua lub luag haujlwm tseem ceeb hauv kev tsim cov qauv kev ntxhov siab hauv cov lus thiab kab lus. prosodic teebmeem zoo li suab thiab intonation.

Vim li cas kuaj cov qib calcitonin?
Nyeem ntxiv

Vim li cas kuaj cov qib calcitonin?

Kev kuaj calcitonin feem ntau yog siv txhawm rau kuaj xyuas C-cell hyperplasia thiab medullary thyroid cancer medullary thyroid cancer Medullary carcinoma yuav xa mus rau ib qho ntawm ntau hom qog nqaij hlav ntawm epithelial keeb kwm. Raws li lo lus "

Thaum twg st sebastian raug ntaus?
Nyeem ntxiv

Thaum twg st sebastian raug ntaus?

Nws tau raug ntaus los ntawm Pope Benedict XIV hauv 1743 thiab canonized hauv 1807 los ntawm Pope Pius VII. Thaum twg Sebastian dhau los ua neeg dawb huv? St. 288, Rome [Italy]; Hnub ua koob tsheej Lub Ib Hlis 20), cov ntseeg thaum ntxov tau nrov los ntawm cov neeg pleev kob Renaissance thiab ntseeg tias tau tua neeg thaum muaj kev tsim txom ntawm cov ntseeg los ntawm Roman huab tais Diocletian.