Somatic recombination - Study guides, Class notes & Summaries

Monophyletic Group - Answer-includes all the descendants of a common ancestor, and its considered a natural grouping of organisms based on a shared ancestry. Paraphyletic Group - Answer-some (not all) of descendants of a common ancestor Polyphyletic Group - Answer-organisms from distinct lineages based on shared characters, but no common ancestor Homologies - Answer-similarities based on shared ancestry Analogies - Answer-similarities based on independent adaptations Synapomorphies - Answ...

● Autosome: ○ Any chromosome not considered as a sex chromosome, or is not involved in sex determination. ○ It occurs in pairs in somatic cells and singly in sex cells (gametes) ● Bivalent: ○ a pair of homologous chromosomes. ● Drosophila melanogaster: ○ a species of fruit Fly much used in genetics because of the large size of its chromosomes. ● Epistasis (gene x gene interaction): ○ refers to genetic interactions in which one gene modifies the effects of another gen...

MMSC 490 Exam 2 Questions with Correct Answers Which eukaryotic DNA polymerase replicates the lagging strand in the 3ʹ to 5ʹ direction? a. α b. γ c. δ d. None of the above; the lagging strand is replicated in the 5ʹ to 3ʹ direction. - Answerd. None of the above; the lagging strand is replicated in the 5ʹ to 3ʹ direction. DNA polymerases can synthesize DNA: a. de novo, by catalyzing the polymerization of free dNTPs. b. by adding dNTPs to complementary dNTPs on a single-strand...

BIO 182 Exam 1 Questions with 100% Correct Answers | Verified | Updated 2024 Mitosis - answerStart with 1 cell (46 chromosomes) and end with 2 cells (46 chromosomes each) Sexual reproduction (gametes) - answerStart with 1 cell (46 chromosomes) and end with 4 cells (23 chromosomes) Mitosis - answerStart with 1 diploid cell, end with 2 diploid cells, one cell division, and mostly somatic cells Meiosis - answerStart with 1 diploid cell, end with 4 haploid cells, two cell divisions, and spe...

Pathophysiology Exam 1 Questions And Answers Graded A+ 2024. An ordered photographic display of a set of chromosomes from a single cell is a(n): A) metaphase spread. B) autosomal spread. C) karyotype. D) anaphase spread. - correct answer. c An error in which homologous chromosomes fail to separate during meiosis is termed: A) aneuploidy. B) nondisjunction. C) polyploidy. D) anaplasia. - correct answer. b A somatic cell that does not contain a multiple of 23...

binary fission - asexual, usually in prokaryotes origin (of replication) - bidirectional (replication AND separation together) homologous chromosome (homologue) - one from mom, one from dad; similar not identical; same alleles in the same order chromatid; sister chromatid - two IDENTICAL halves of a single replicated eukaryotic chromosome histone - proteins that have DNA wrapped around them in the *nucleosome* structure nucleosome - 147nt of DNA wrapped around a core of 8 histone proteins ...

PCOL 838b Exam 1 Questions With 100% Correct Answers

Bio Sci 93 Final Review (trio) Exam Questions With 100% Correct Answers (Verified A+ Pass) 5 Stages in Cell Cycle - Answers - G1, G2 , S phase, Mitosis/Cytokinesis, G0 What happens during G1/G2 phase in the cell cycle - Answers - Growth Checkpoints: regulate the cell cycle What happens during the S phase in the cell cycle - Answers - DNA Synthesis What happens during the Mitosis/ Cytokinesis stage in cell cycle - Answers - Cell Division What happens in the G0 phase in Cell cycle ...

1. Committed lymphocyte progenitors originate in the: A. thymus. B. bone marrow. C. spleen. D. lymph node. E. brain. - Answer: B Section: Early Thymocyte Development Difficulty: 1 Hint: All blood cells originate in the same anatomical location. 2. Hematopoietic stem cells cultured in the presence of which receptor differentiate into T cells rather than B cells? A. CD4 B. CD8 C. Notch-ligand D. B7-1 E. CD3 - Answer: C Section: Early Thymocyte Development Difficulty: 1 Hint: Mark...

What process creates the variable region domain for both TCRs and BCRs? - Somatic Recombination What the different types IFN-1? - Alpha and Beta What are the differences and similarities between CD8 T Cells and NK cells? - The both have the same cytotoxic granules, NK cells are activated faster, because they come out of the bone marrow "ready to go". CD8 T cells recognizes MHC Class 1 + peptide (antigen) on a pathogen, while NK cells recognize normal MHC Class 1 molecules on the surface ...