Alleles Study guides, Class notes & Summaries

What modification neutralizes the charges on histones and looses up the interactions between histones and DNA? - Answer- ACETYLATION Two types of post-transcriptional modifications that take place in the mRNA of eukaryotes - Answer- the addition of a CAP at the 5' end of the transcript and the addition of a POLY A sequence at the 3' end of the message Nucleic acid blotting is widely used in recombinant DNA technology. In a Southern blot one generally - Answer- Hybridizes filter-bound DNA...

Question Number Answer Mark 1 (a)(i) The only correct answer is C metaphase A is incorrect as centromeres and spindle fibred do not join in anaphase B is incorrect as centromeres and spindle fibres do not join in interphase D is incorrect as centromeres and spindle fibres do not join in telophase [1] Question Number Answer Mark 1 (a)(ii) The only correct answer is C prophase A is incorrect as the nuclear envelope does not start to break down in interphase B is incorrect as the nuclear...

SFSU Bio 230 Study Guides for Exams 1, 2, 3, and 4 Questions and Answers Grade A+ How are chromosomes, genes, alleles, proteins, traits and mutations related? - ️️ Chromosomes contain DNA which contains genes that can vary and are then called alleles, which code for proteins that can be expressed as traits. Mutations happen. What causes cancer?Are all mutations caused by mutagens? - ️️ Cancer can be caused by inheritance or sporadic mutations (mutagens). Not all mutations are cause...

How many species? correct answer: 3-5 million species Commonalities of species correct answer: reproduce and survive 3 types of evolution correct answer: natural theistic- guided by God creation Support for evolution: correct answer: natural selection, mutation, genetic drift Requirements for experimentation correct answer: replicate observations control conditions randomize experimental units Lamarck correct answer: inheritance of acquired characteristics Hutton and ...

TAMU bio 111 lab exam 2 review (2023/2024) already passed What is the difference between the coding and non-coding region? Coding region: comprised of genes that encode proteins (instructions that determine traits) and makes up 1-2% of human DNA. • Noncoding region: makes up 98-99% of human DNA, contains STRs and is responsible for regulatory functions such as gene transcription. What are STRs? Short-tandem repeats (STRs) are unique repeating patterns of the same nucleotide sequence. They can...

ADVANCED PATHOPHYSIOLOGY- UTMB 5355 EXAM #1 Questions And Answers ( Verified ) Transcription - ANS synthesis of RNA from DNA Transcription results in - ANS mRNA RNA polymerase makes - ANS mRNA mRNA - ANS makes proteins RNA polymerase - ANS binds to DNA Transcription factors (TFs) - ANS A regulatory protein that binds to DNA and affects transcription of specific genes. Can wither activate or repress expression of genes Termination of transcription - ANS RNA poly...

Lamarck's model of evolution is best described as a mathematical model. correct answer: True Given Lamarck's model, biologist used deduction to infer how elephants used their trunks. correct answer: True Lamarck's model conflicts with a worldview of theistic (God-guided) evolutions. correct answer: True Lamarck's worldview could have been described as creationism correct answer: False Lamarck's model likely lost its appeal to biologists because the evidence for Drawing's mo...

Adaptation- - correct answersThe adjustment or changes in behavior, physiology, and structure of an organism to become more suited to an environment. Aerobic- - correct answersA process that requires oxygen. Allele -An alternative form of a gene. An example would be genes that encode eye color—some encode blue eyes (one allele), while others encode brown, green, or hazel eye colors (other alleles). - correct answers amino acids - - correct answersA small organic molecule with the stru...

ASU BIO 345 Exam 1| Questions and answers 2023/24 | GRADED A+ D ≈ 0.49 A population of butterflies comes in three color morphs; orange (A1A1), black (A2A2), or orange with black spots (A1A2). You find that the frequency of orange butterflies is 0.49, and the frequency of black butterflies is 0.36. You do not know if the population is currently in HWE. What would you expect the frequency of spotted butterflies to be, if the population is under Hardy-Weinberg equilibrium? A ≈ 0.42 B ≈ ...

Mark Scheme (Results) Summer 2023 Pearson Edexcel GCE In Biology A (9BN0 02) Paper 2: Energy, Exercise and CoordinationEdexcel and BTEC Qualifications Edexcel and BTEC qualifications are awarded by Pearson, the UK’s largest awarding body. We provide a wide range of qualifications including academic, vocational, occupational and specific programmes for employers. For further information visit our qualifications websites at or . Alternatively, you can get in touch with us using the deta...