1.综合题- (共5题)

(1)鸟卵的结构中,将来能发育成雏鸟的部位是[ ]______,该结构与[ ]____和能
为胚胎发育提供营养物质的[ ]____共同构成完整的卵细胞。
(2)人工孵化小鸡时,为保证能孵化出体格健壮的雏鸡,所选用的卵应该是____________,
(3)在鸟卵外壳上均匀地涂抹上凡士林,你认为能不能孵化出小鸟?____,其原因是______________________________。

(l)豌豆的亲代都是紫花,而后代中出现了白花,这种现象在生物学上称为__________;豌豆的紫花和白花在遗传学上称为_____________。
(2)根据豌豆紫花和白花在亲代与后代的表现规律可以判断出_________是隐性性状。
(3)豌豆体细胞中的染色体是_________存在的,形成生殖细胞时,染包体的数目要______________。

(1)写出各部分的名称A___________B___________C___________D___________E____________
(2)图中D是___________存在的,所以,图中所示的细胞是___________细胞,而不是____________细胞。
(3)图中E表示的是D上的_____________,实际上一对D上有___________对E,每对E都控制着某一个生物的___________,所有D上的全部的E控制着整个生物的____________。
(4)生物主要的遗传物质是 ______,而遗传物质的主要载体是__________,控制人类各种性状如有无耳垂等的是____________。

(1) 根据染色体组成可以判断,乙为____________性的染色体组成。
(2) 若甲、乙是一对夫妇,第一胎生的是女孩,假如他们再生第二胎,生男孩的可能性约为___________%。

(1)父亲的基因是_______,母亲的基因是_______。
(2)父亲能产生_____种精子,其基因型是______,母亲能产生_____种卵细胞,其基因型是______。
(3)这对夫妇所生小孩患白化病的可能性是_______%。
2.单选题- (共12题)
A. 基因 B. 糖类 C. 脂肪 D. 蛋白质
A.精子和卵细胞中携带着亲代的性状 |
B.精子和卵细胞中携带着控制性状的基因 |
C.总在一起生活,长相就会相像 |
D.父母所有的性状都遗传给了子代 |
A. 基因、DNA、染色体、细胞核 B. DNA、基因、细胞核、染色体
C. 细胞核、染色体、DNA、基因 D. 染色体、细胞核、基因、DNA

A.化石是研究生物进化的唯一可靠的证据 |
B.对不同生物的解剖结构进行分析比较,也是研究生物进化常用的方法 |
C.分子生物学为研究生物进化提供了重要的依据 |
D.与解剖学、分子生物学、胚胎学等方面的证据相比,化石是研究生物进化最直接的证据 |
3.选择题- (共5题)
A young man went to the local expert(专家) on gems and said he wanted to become a gemologist(珠宝家). The expert turned him down because he feared the youth would not have the patience to learn. The young man asked for a chance. Finally, the expert told the youth, "Be here tomorrow."
The next morning the expert put a jade(玉) stone in the youth's hand and told him to hold it. The expert then went about his work, cutting, weighing and setting gems. The boy sat quietly and waited.
The following morning the expert again put the jade stone in the youth's hand and told him to hold it. On the third, fourth and fifth days, the expert asked the young man to do the same thing. On the sixth day, the youth held the jade stone but he could no longer stand(忍受) the silence. "Master, when am I going to learn something?" he asked. "You will learn." the expert said and went about his business.
Several more days went by and the youth almost lost his patience. But one morning as the master put the stone in the youth's hand, the young man said without looking at his hand, "This is not the same jade stone!" "You have begun to learn." said the master.
Practice makes perfect. The experience we learned from practice teaches us and develops our abilities. Experience is the best teacher. Even the most successful person had no absolute confidence once. It is experience that gives people confidence. The truth is: if you do the work and gain the experience, you'll have more confidence because you'll actually know what you're doing.
A young man went to the local expert(专家) on gems and said he wanted to become a gemologist(珠宝家). The expert turned him down because he feared the youth would not have the patience to learn. The young man asked for a chance. Finally, the expert told the youth, "Be here tomorrow."
The next morning the expert put a jade(玉) stone in the youth's hand and told him to hold it. The expert then went about his work, cutting, weighing and setting gems. The boy sat quietly and waited.
The following morning the expert again put the jade stone in the youth's hand and told him to hold it. On the third, fourth and fifth days, the expert asked the young man to do the same thing. On the sixth day, the youth held the jade stone but he could no longer stand(忍受) the silence. "Master, when am I going to learn something?" he asked. "You will learn." the expert said and went about his business.
Several more days went by and the youth almost lost his patience. But one morning as the master put the stone in the youth's hand, the young man said without looking at his hand, "This is not the same jade stone!" "You have begun to learn." said the master.
Practice makes perfect. The experience we learned from practice teaches us and develops our abilities. Experience is the best teacher. Even the most successful person had no absolute confidence once. It is experience that gives people confidence. The truth is: if you do the work and gain the experience, you'll have more confidence because you'll actually know what you're doing.
A young man went to the local expert(专家) on gems and said he wanted to become a gemologist(珠宝家). The expert turned him down because he feared the youth would not have the patience to learn. The young man asked for a chance. Finally, the expert told the youth, "Be here tomorrow."
The next morning the expert put a jade(玉) stone in the youth's hand and told him to hold it. The expert then went about his work, cutting, weighing and setting gems. The boy sat quietly and waited.
The following morning the expert again put the jade stone in the youth's hand and told him to hold it. On the third, fourth and fifth days, the expert asked the young man to do the same thing. On the sixth day, the youth held the jade stone but he could no longer stand(忍受) the silence. "Master, when am I going to learn something?" he asked. "You will learn." the expert said and went about his business.
Several more days went by and the youth almost lost his patience. But one morning as the master put the stone in the youth's hand, the young man said without looking at his hand, "This is not the same jade stone!" "You have begun to learn." said the master.
Practice makes perfect. The experience we learned from practice teaches us and develops our abilities. Experience is the best teacher. Even the most successful person had no absolute confidence once. It is experience that gives people confidence. The truth is: if you do the work and gain the experience, you'll have more confidence because you'll actually know what you're doing.
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【1】题量占比
综合题:(5道)
单选题:(12道)
选择题:(5道)
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【2】:难度分析
1星难题:0
2星难题:0
3星难题:0
4星难题:3
5星难题:0
6星难题:5
7星难题:0
8星难题:6
9星难题:3