تجمع المتقدمات على ماستر علوم الاحياء لعام 1435

[المرام 22]

المشاركة الأصلية كتبت بواسطة lamasat في سؤل في كتاب مقدمه الاحياء اثناء تحور الرنا ماذا يحدث لنسخة الرنا 1 تتغير بفعل اضافة او نزع نيكلوتيده 2تترافق مع نسخة دنا 3يغلفها البروتين 4تتحد مع الخيط السكري الفوسفاتي المتمم له واللي عنده حلول الكتاب يرسله تكفون

الرنا وظيفته هي تكوين البروتين والمقصود من تحور الرنا اي بعد مايكون جزئ البروتين وش يصير له فاكيد بيرجع يرتبط بجزئ السكر المتمم له

[91girl]

المشاركة الأصلية كتبت بواسطة المرام 22 الرنا وظيفته هي تكوين البروتين والمقصود من تحور الرنا اي بعد مايكون جزئ البروتين وش يصير له فاكيد بيرجع يرتبط بجزئ السكر المتمم له

طيب معليه اي هوا الخيط السكري الفوسفاتي !!

[المرام 22]

المشاركة الأصلية كتبت بواسطة 91girl طيب معليه اي هوا الخيط السكري الفوسفاتي !!

الrna عباره عن خيط واحد مكون من وحدات تسمى نيوكلوتيدات
النيوكلوتيده عباره عن سكر خماسي مرتبطه بمجموعة فوسفات وقاعده نيتروجينه
القواعد النيتروجينه الي هي
جوانين سايتوسين
ثيامين ويوراسيل
طبعاً الشفره عباره عن تتابع ثلاث قوعد نيتروجينه
كل بروتين يرتبط بتتابع معين
بعد ماتربط الشفر الوراثيه اجزاء البروتين ترجع مرا ثانيه للخيط
فهمتي؟!

[91girl]

المشاركة الأصلية كتبت بواسطة المرام 22 الrna عباره عن خيط واحد مكون من وحدات تسمى نيوكلوتيدات النيوكلوتيده عباره عن سكر خماسي مرتبطه بمجموعة فوسفات وقاعده نيتروجينه القواعد النيتروجينه الي هي جوانين سايتوسين ثيامين ويوراسيل طبعاً الشفره عباره عن تتابع ثلاث قوعد نيتروجينه كل بروتين يرتبط بتتابع معين بعد ماتربط الشفر الوراثيه اجزاء البروتين ترجع مرا ثانيه للخيط فهمتي؟!

يس فهمتك بس مرسي اوي

[مـها العامدي]

السلام عليكم ياحلوين


جبتلكم شوية أسئلة بالانجليزي لأحياء وراثة بأجوبتها


عاد الله يعينكم إذا الإجابة كل ماسبق أو و1 و2

ارجعو لموقع الأسئلة http://prod.kau.edu.sa/faculties/science/bio/index.aspx


ملحظة : مع كل تحديث تتغير الأسئلة




No. Question The right Answer
1 Binary fission ______________. First and second choice
2 Eukaryotic Cell Division includes __________________ First and second choice
3 The Interphase of Eukaryotic Cell Cycle includes __________ phases G1, S, and G2
4 G2 _______________ second gap phase,growth and preparation for division
5 Prophase _______________ Chromatin condenses and chromosomes become visible.
6 Duplicated chromosome is made of__________________ two identical DNA molecules
7 Cytoplasmic division __________________ none of the above
8 Pairs of autosomes __________________ all of the above
9 Fertilization __________________ is the union of sperm and egg
10 Sister chromatids separate during __________________ First and second choice
11 Which of the following is Heterozygous Aa
12 Normal male in genetic pedigree is represented by __________ Open square
13 Codominance is referred to _______________ none of the above
14 Which of the following is ture in grasshoppers sex determination system XX = female
15 In DNA __________ C hydrogen bonds to G
16 Each new DNA double helix has ________________ one old strand with one new strand
17 In the flow of genetic information ________________ First and second choice
18 Translation involves ________________ rewrites the RNA code into protein
19 Genetic code is a ________________ none of the above
20 Genetic Dictionary ________________ Nearly universal
21 Mutation means ________________ change in the nucleotide sequence of DNA
22 Genetically modified (GM) animal is produced to ________________ produce of proteins
23 The enzyme that cut DNA at precise points is ________________ Restriction enzyme
24 In recombinant DNA prepration, human gene is inserted into ________________ plasmids
Total Marks





No. Question The right Answer
1 Binary fission ______________. Occurs in prokaryotic cells
2 Eukaryotic Cell Division includes __________________ meiosis
3 The Interphase of Eukaryotic Cell Cycle includes __________ phases G1, S, and G2
4 _____________ is a part of Eukaryotic Cell Cycle all of the above
5 ____________ is (are) Chromosomes decondensed. Cytokinesis begins Telophase
6 Sister chromatids are joined at a narrow region called the __________________ centromere
7 Cytoplasmic division __________________ is called Cytokinesis
8 Pairs of autosomes __________________ matched in Centromere position
9 Fertilization __________________ First and second choice
10 Crossing over occurs during__________________ prophase of meiosis I
11 Which of the following statements are true First and second choice
12 Open square in human pedigree is symbol for __________________ normal male
13 Codominance is referred to _______________ Heterozygote expresses phenotypes of both homozygotes
14 Which of the following is ture in bees sex determination system haploid = male
15 In DNA __________ A hydrogen bonds to T
16 The double stranded DNA ________________ are complementary
17 Genetic information flow from ________________ none of the above
18 Transcription involves ________________ rewrites the DNA code into RNA
19 Genetic code is a ________________ sequance of nucleotides in DNA
20 Stop codon signals ________________ the end of translation
21 DNA Mutation can be ________________ Induced by High-energy radiation
22 Genetically modified (GM) plant is produced to ________________ First and second choice
23 The enzyme that cut DNA at precise points is ________________ Restriction enzyme
24 In recombinant DNA prepration, human gene is inserted into ________________ plasmids
Total Marks



No. Question The right Answer
1 Binary fission ______________. First and second choice
2 Eukaryotic Cell Division includes __________________ First and second choice
3 The Interphase of Eukaryotic Cell Cycle includes __________ phases G1, S, and G2
4 G2 _______________ second gap phase,growth and preparation for division
5 ____________ is (are) Sister chromatids separate, move to opposite poles. Anaphase
6 Duplicated chromosome is made of__________________ two identical DNA molecules
7 Cytoplasmic division __________________ is called Cytokinesis
8 Meiosis __________________ all of the above
9 Fertilization __________________ First and second choice
10 During meiosis I __________________ The chromosome number is reduced by half 2n → 1n
11 Which of the following is Heterozygous Aa
12 Open circle in human pedigree is symbol for __________________ normal female
13 ____________ is referred to as Heterozygote expresses phenotypes of both homozygotes Codominance
14 Which of the following is ture in grasshoppers sex determination system XX = female
15 DNA is __________ a double-stranded helix
16 DNA replication ________________ follows a semiconservative model
17 Genetic information flow from ________________ DNA --> RNA --> protein
18 Translation involves ________________ rewrites the RNA code into protein
19 Genetic code is a ________________ none of the above
20 Genetic Dictionary ________________ Nearly universal
21 DNA Mutation can be ________________ due to errors in DNA replication
22 Genetically modified (GM) animal is produced to ________________ produce of proteins
23 The enzyme that cut DNA at precise points is ________________ Restriction enzyme
24 In recombinant DNA prepration, human gene is inserted into ________________ plasmids
Total Marks



No. Question The right Answer
1 Prokaryotes are reproduced by ______________. asexually
2 Eukaryotic Cell Division includes __________________ meiosis
3 The Interphase of Eukaryotic Cell Cycle includes __________ phases G1, S, and G2
4 _____________ is a part of Eukaryotic Cell Cycle First and second choice
5 ____________ is (are) Sister chromatids separate, move to opposite poles. Anaphase
6 Sister chromatids are joined at a narrow region called the __________________ centromere
7 Cytoplasmic division __________________ is called Cytokinesis
8 Pairs of autosomes __________________ have the same genetic information
9 Fertilization __________________ all of the above
10 Sister chromatids separate during __________________ First and second choice
11 The Phenotypic ratio of F2 generation in monohybrid cross is _______________ none of the above
12 Filled circle in human pedigree is symbol for __________________ affected female
13 Pleiotropy is referred to _______________ none of the above
14 Which of the following is ture in grasshoppers sex determination system First and second choice
15 In DNA __________ C pairs with G
16 The double stranded DNA ________________ are complementary
17 In the flow of genetic information ________________ DNA is transcribed into RNA
18 Translation of RNA takes place ________________ in the Cytoplasm
19 Genetic code is a ________________ sequance of nucleotides in DNA
20 Genetic Dictionary ________________ First and second choice
21 DNA Mutation can be ________________ Induced by High-energy radiation
22 Genetically modified (GM) plant is produced to ________________ First and second choice
23 The enzyme that cut DNA at precise points is ________________ Restriction enzyme
24 In recombinant DNA prepration, human gene is inserted into ________________ plasmids
Total Marks

[lamasat]

سوري مافهمت😁

[المرام 22]

المشاركة الأصلية كتبت بواسطة lamasat سوري مافهمت😁

وش الي مافهمتيه؟!

[MaaRaaM]

مشكووورة ع الاسئلة يا سميتي ..

[lamasat]

االي مافهمته
اختلاف الاسئله والاجابات لما دخلت على الرابط اشوف الاختيارات حسيت اختلاف
ليت توضحي جزاك الله خير

[91girl]

^
^
ماشفتي الملاحظة لي كتبتها الاخت , مع كل تحديث لصفحة تجيكي اسئلة تقريبا مختلفة او نفسها بس اختيارات غير
لكن مو مهم انت لمن ترسلي الاجابات هو الموقع يقلك ايش الصح واية الغلط ويصحح الغلط
فهمتي ياقمرا