某同学以新鲜洋葱鳞片叶内表皮为材料,经不同处理和染色体剂染色

某同学以新鲜洋葱鳞片叶内表皮为材料,经不同处理和染色体剂染色,用高倍显微镜观察.下列描述正确的是()

      A  经吡罗红甲基绿染色,可观察到红色的细胞核

      B  经吡罗红甲基绿染色,可观察到绿色的细胞质

      C  经健那绿染色,可观察到蓝绿色颗粒状的线粒体

      D  经苏丹染色,可观察到橘黄色颗粒状的蛋白质

答案

C

相关题目

某运动员投篮命中率为,他重复投篮5次,若他命中一次得10
某运动员投篮命中率为,他重复投篮5次,若他命中一次得10分,没命中不得分,命中次数为,得分为,则分别为(  ***  ) A.,60          B.3,1
.下列去括号正确的是( )A. ﹣(a+b﹣c)=﹣a+b﹣c B. ﹣2
.下列去括号正确的是( )A. ﹣(a+b﹣c)=﹣a+b﹣c B. ﹣2(a+b﹣3c)=﹣2a﹣2b+6cC. ﹣(﹣a﹣b﹣c)=﹣a+b+c D. ﹣(a﹣b﹣c)=﹣a+b﹣c
It was Saturday. As always, it was a busy one, for “Six days shall you labor
It was Saturday. As always, it was a busy one, for “Six days shall you labor and do all your work” was taken seriously back then. Outside, Father and Mr. Patrick next door were busy chopping fir
I wondered _____ they always looked down upon me.    A. why it was which  
I wondered _____ they always looked down upon me.    A. why it was which   B. why it was that   C. why was it that   D. what was it that  
第28届国际地质大会提供的资料显示,海底有大量的天然气水
第28届国际地质大会提供的资料显示,海底有大量的天然气水合物,可满足人类1 000年的能源需要。天然气水合物是一种晶体,晶体中平均每46个水分子
已知的最大值为a,最小值为b,的最大值为c,最小值为d,则A
已知的最大值为a,最小值为b,的最大值为c,最小值为d,则A.   b<d<a<c    B.   d<b<c<a      C.  b<d<c<a       D.  d<b<a<c
无土栽培是一种农业高新技术,它可以显著提高农作物的产
无土栽培是一种农业高新技术,它可以显著提高农作物的产量和质量。某品种茄子的无土栽培营养液中含有6%的KNO3。 ⑴KNO3属于             (填
. Social networking is an important factor _______ business success. A. devoting
. Social networking is an important factor _______ business success. A. devoting to                      B. appealing to              C. attaching to        

最新题目