首页
登录
职称英语
It can be inferred from the passage that the morphogenetic determinants present
It can be inferred from the passage that the morphogenetic determinants present
游客
2025-02-26
34
管理
问题
It can be inferred from the passage that the morphogenetic determinants present in the early embryo are______ [br] It can be inferred from the passage that the initial production of histones after an egg is fertilized takes place______
选项
A、in the cytoplasm
B、in the maternal genes
C、throughout the protoplasm
D、in the beaded portions of the DNA strings
E、in certain sections of the cell nucleus
答案
A
解析
A is the best answer. In the third paragraph, the author asserts that substances that function as morphogenetic determinants are located in the cytoplasm of the cell and become active after the cell is fertilized. In the fourth paragraph we learn that these substances are “maternal messenger RNA’s” and that they “direct, in large part, the synthesis of histones,” which, after being synthesized, “move into the cell nucleus” (lines 59-68). Thus, it can be inferred that after the egg is fertilized, the initial production of histones occurs in the cytoplasm.
转载请注明原文地址:https://tihaiku.com/zcyy/3974223.html
相关试题推荐
Itcanbeinferredfromthepassagethataccidental-deathdamageawardsinAmeri
Itcanbeinferredfromthepassagethataccidental-deathdamageawardsinAmeri
Itcanbeinferredfromthepassagethataccidental-deathdamageawardsinAmeri
Itcanbeinferredfromthepassagethataccidental-deathdamageawardsinAmeri
Itcanbeinferredfromthepassagethatthemorphogeneticdeterminantspresent
Itcanbeinferredfromthepassagethatthemorphogeneticdeterminantspresent
Accordingtothepassage,whichofthefollowingbestdescribesmostozone-deple
Accordingtothepassage,whichofthefollowingbestdescribesmostozone-deple
Themainpointmadebythepassageisthat______[br]Thepassagestatesthattr
(Thispassagewaswrittenin1984.)Itisnowpossibletoheararecordingo
随机试题
"EnvironmentalScienceClass"[img]2012q1/ct_etoefm_etoeflistz_1592_20121[/img][
在以下描述中,属于扇贝效应的是()A.吃完青菜,才可以吃火腿 B.学生在期末
以下属于不同感觉的相互作用的是()A.感觉补偿 B.联觉 C.融合 D.
下列各项中,不符合内部牵制的要求的是()。A、出纳人员管票据 B、出纳人员
处方中未注明炮制要求即付生品的是A.草乌 B.穿山甲 C.王不留行 D.自
某建筑公司,去年预算成本76642.90万元,施工产值为81535.0
托运人一次托运的货物重量在3吨(含3吨)以上或不足3吨,但其性质、体积、形状需要
下列关于建筑工程施工现场消防器材配置的说法,正确的有( )。A.高度超过24m的
某有色金属及合金有优良的导电性和导热性,较好的耐蚀性和抗磁性,优良的耐磨性和较高
关于妄想特征,错误的是A.受教育越高越容易出现妄想 B.内容受文化背景影响
最新回复
(
0
)