用基因型为rr的枝条作接穗,成功嫁接到基因为RR的砧木上,在正常

用基因型为rr的枝条作接穗,成功嫁接到基因为RR的砧木上,在正常情况下,该枝条上结出了果实,判断果皮的基因型正确的是

A.rr                   B.Rr             C.RR            D.RR和rr

 

答案

A

解析:嫁接后结出来的果实只与接穗有关,与砧木无关。

 

相关题目

如图24­20,已知AB为⊙O的直径,BD为⊙O的切线,过点B的弦BC
如图24­20,已知AB为⊙O的直径,BD为⊙O的切线,过点B的弦BC⊥OD交⊙O于点C,垂足为点M. (1)求证:CD是⊙O的切线; (2)当BC=BD,且BD=6 cm时,求图中阴影
阅读《风筝》(节选),完成下面题目(共11分)①但我是向
阅读《风筝》(节选),完成下面题目(共11分)①但我是向来不爱放风筝的,不但不爱,并且嫌恶他,因为我以为这是没出息孩子所做的玩艺。和我相
Ⅳ.短文填词 When it comes to traveling way, different people will offer di
Ⅳ.短文填词 When it comes to traveling way, different people will offer different 40.o________. Some people like to travel alone, 41.________ others prefer to travel with a companion. Of cours
下图是实验室常用的装置: (1)请写出所标仪器的名称:① 
下图是实验室常用的装置: (1)请写出所标仪器的名称:①         、②         ; (2)实验室用高锰酸钾制取氧气,装置B还需做的一点改动是 
The ______on his face told me that he was angry.      A. impression    
The ______on his face told me that he was angry.      A. impression       B. sight      C. appearance      D. expression
 Joe’s sister had wanted very much to be a pop singer, but she ______ as a n
 Joe’s sister had wanted very much to be a pop singer, but she ______ as a newspaper reporter. A. cleaned up          B. looked up          C. ended up       D. made up
p{font-size:10.5pt;line-height:150%;margin:0;padding:0;}td{font-size:10.5pt;}(08
p{font-size:10.5pt;line-height:150%;margin:0;padding:0;}td{font-size:10.5pt;}(08合肥十中模拟) 以惰性电极电解CuSO4溶液。一段时间后取出电极,加入9.8gCu(OH)2后溶液与
某兴趣小组做一实验,用力传感器来测量小滑块在半圆形容
某兴趣小组做一实验,用力传感器来测量小滑块在半圆形容器内来回滑动时对容器内壁的压力大小,且来回滑动发生在同一竖直平面内。实验时,他们

最新题目