Hox genes - Study guides, Revision notes & Summaries

Alleles used for phenotype & molecular variation Genetic Redundancy & Robustness a given function encoded by 2 or more genes persistence of a character/trait in conditions of uncertainty Gene Products biochemical material (proteins/functional RNA) Alternative Splicing regulated process during gene expression that results in a single gene coding for multiple proteins Base Substitution replacement of a single nucleotide in a nucleic acid that can be silent due to "degeneracy" of DNA, in whic...

OSMT Exam Questions with verified Solutions 100% Solved 2024 Why doesn't phylogenetic systematics have a fixed number of hierarchical categories like Linnaean systematics? - answerEach branching point is a hierarchical level in the nested structure of phylogenetic systematics. The number of branching points—and therefore the number of possible hierarchical levels—varies substantially from one lineage to another. What aspect of evolution does phylogenetic systematics represent more cle...

Biology 1108 Exam 3 Questions and Answers (Latest Update) 120 Questions | Graded A+. Alpine - Correct Answers Similar to Tundra, Lacks permafrost, Budding - Correct Answers Form of asexual reproduction in which a bud/protrusion forms on an organism and eventually breaks off to form a new organism that is smaller than its parent. Fragmentation - Correct Answers A type of asexual reproduction in which one organism is broken into pieces, each of which develops into a new individual Partheno...

BIO 148 EXAM2 PRACTICE TEST 63 Questions with Verified Answers . A doctor is trying to identify the mutant gene that causes her patient to be colorblind. To do this she takes a swab of the patient's cheek cells to send off for DNA sequencing. Did she sample the correct cells? a. No, because the cells of the eye have different genes than the cells of the cheek. b. No, because the cells of the eye have different chromosomes than the cells of the cheek. c. Yes, because both cells have the s...

BIO 13 Practice Test 40 Questions with Verified Answers RNA contains the sugar a. ribose. b. deoxyribose. c. glucose. d. lactose. - CORRECT ANSWER a. ribose. Unlike DNA, RNA contains a. adenine. b. uracil. c. phosphate groups. d. thymine. - CORRECT ANSWER b. uracil. Which of the following are found in both DNA and RNA? a. ribose, phosphate groups, and adenine b. deoxyribose, phosphate groups, and guanine c. phosphate groups, guanine, and cytosine d. phosphate grou...

BIOL 102 Final Exam Questions and Answers Latest Update (Graded) Which social insect is identified as the most abundant on earth by Wilson? - ANSWER Ants Wilson argues that biodiversity is enhanced and maintained by which of the following? - ANSWER Trees and branches falling periodically falling in the rain forest Wilson argues that science proceeds when - ANSWER new patterns of thought are applied to old facts allowing scientists to interpret the world in a different matter The volcanic e...

BMP antagonist correct answers -blocks BMP from binding to its receptor -comes from prechordal plate neural cells correct answers neurons & glia neurogenesis correct answers -the development of new neurons -entails a balance between proliferation and commitment to differentiation neural subtype specification correct answers neurogenesis must be coordinated with mechanisms that generate difference between neural cell types in terms of structure, function, and neurotransmitter type p...

Biology 1108 Exam 3 Questions and Answers (Latest Update) 120 Questions | Graded A+. Alpine - Correct Answers Similar to Tundra, Lacks permafrost, Budding - Correct Answers Form of asexual reproduction in which a bud/protrusion forms on an organism and eventually breaks off to form a new organism that is smaller than its parent. Fragmentation - Correct Answers A type of asexual reproduction in which one organism is broken into pieces, each of which develops into a new individual Partheno...

1) Within a sperm cell, what is the function of an acrosome? - ANS Contains enzymes needed to penetrate egg cells 2) How do membrane proteins on both an egg and a sperm cell function to keep fertilization species-specific? - ANS A fragment from the egg-wall receptor binds to binding proteins on the sperm only if it is the same species 3) Explain the steps of the acrosomal reaction. - ANS i. Sperm Contacts jelly layer ii. Reaction begins: Release of digestive en...

CMMB Tutorial Quiz 1WISH - correct answer Whole-mount Insitu Hybridization -> involves staining whole embryos with complementary RNA probe with label (DIG). Probe is detecting using anti-DIG antibody. *Causes embryos to shrink B-Galactosidase/LacZ reporter assay - correct answer Dna containing enhancer, promoter and reporter injected into embryo creating a transgenic animal. LacZ reporter encodes B-galactosidase enzyme that reacts with substrate addition. Location of staining = location ...