Genes and 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...

The flow of genetic information in cells from DNA to phenotype Central Dogma of Molecular Biology The three-nucleotide sequence in amino acid Triplet Codon The relationship between a nucleotide and its corresponding amino acid Genetic Codon Terminate protein synthesis and release the polypeptide from the translation machinery Stop Codons Initiate translation Start Codons Begins with trna anticodon recognizes a codon on the mrna. Translation Changes in the DNA sequence of a gene Mutations ...

UNT Biology 1710 Practice Exam 3|52 Questions with Verified Answers An excellent example of the genetic phenomenon known as continuous variation would be: a. flower color in plants. b. height in humans. c. human blood groups. d. epistasis. e. fur color in arctic animals - CORRECT ANSWER B) height in humans A human genetic trait passed from one generation to the next has an unusual inheritance pattern. The genotype and phenotype of the offspring depends only upon the genotype of the mo...

WGU C652 Objective Assessment Guide (Latest 2024/ 2025 Update) Heredity and Genetics | Questions and Verified Answers| 100% Correct| Grade A Q: crossing over Answer: exchange of genetic material between homologous chromosomes during prophase I of meiosis Q: How does crossing over contribute to Independent Assortment? Answer: By redistributing genetic material between homologous chromosomes in prophase 1, new combinations of gene pairs are created. Q: independent asso...

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...

Chapter 1: DNA Structure and Function Multiple Choice Identify the choice that best completes the statement or answers the question. A. 1. In which body or cell area are most genes in humans located? A. Nucleus B. Mitochondrion C. Cytoplasm D. Plasma membrane A. 2. Which condition or statement exemplifies the concept of genomics rather than genetics? A. The gene for insulin is located on chromosome 11 in all people. B. Expression of any single gene is dependent on inheriting two allele...

Penn Foster - Biology Lesson 3, Genetics and Inheritance, Exercise & Self-Check Answer Key with Complete Solutions What is a genotype? The genetic constitution of an individual, represented by the combination of alleles. What is a phenotype? The observable physical or biochemical characteristics of an organism determined by the genotype and environment. What is the principle of segregation in genetics? The principle stating that during the formation of gametes, the two allel...

WGU C652 Study Guide (Latest 2024/ 2025 Update) Heredity and Genetics | Questions and Verified Answers| 100% Correct| Grade A Q: crossing over Answer: the exchange of genes between homologous chromosomes, resulting in a mixture of parental characteristics in offspring. All possible combinations creat an "independent assortment" Q: Mendal's Law of Segregation Answer: 2 copies of a gene segregate from each other during the transmission from parent to offspring Q: Me...

BIO 335 Exam 3 Questions and Answers Already Passed The chromosome composition in humans The chromosome composition in humans refers to the total number and arrangement of chromosomes in human cells. Humans typically have 46 chromosomes, consisting of 23 pairs, with one set inherited from each parent. These chromosomes contain genetic material that carries the instructions for various traits and functions in the human body. What are the potential inheritance patterns in Mendel's experim...

Bio Final Exam Questions and Answers 100% Pass What domain includes unicellular organisms lacking membrane-bound organelles, often living in and on humans in various relationships? A.) Archaea B.) Bacteria C.) Eukarya D.) Protista Correct Answer: B.) Bacteria **Explanation:** Bacteria are single-celled organisms without membrane-bound organelles, commonly found in parasitic or mutualistic relationships with humans. What term describes different versions of genes that encod...