Trisomy x xxx - Study guides, Class notes & Summaries

karyotyping - number and type of chromosome present Barr body - -condensed inactive X chromosome near nucleus of cell -all females have 1 Barr body nondisjunction - failure of chromosomes to separate during meiosis autosomal nondisjunction - -failure of chromosomes (other than sex chromosomes) to separate during meiosis -exs: trisomy 21, trisomy 18 translocation - portion of one chromosome is transferred to another (usually nonhomologous) abnormal egg (XX) x normal sperm (X) - -zygote: X...

ABGC Practice Questions and Answers 2024 Updated Under what circumstances should an infant with clinical features of Down syndrome be karyotyped? A. Only if the parents desire more children B. Only if the mother is younger than 35 years old C. Only if not all of the features of Down syndrome are present D. Only if the mother has had 3 early miscarriages E. Always - CORRECT ANSWER-E. Always What is the parental origin and stage of meiosis when most meiotic errors occur resulting...

karyotyping - number and type of chromosome present Barr body - -condensed inactive X chromosome near nucleus of cell -all females have 1 Barr body nondisjunction - failure of chromosomes to separate during meiosis autosomal nondisjunction - -failure of chromosomes (other than sex chromosomes) to separate during meiosis -exs: trisomy 21, trisomy 18 translocation - portion of one chromosome is transferred to another (usually nonhomologous) abnormal egg (XX) x normal sperm (X) - -...

CMU Genetics Week 2: Chapter 3 & 4 Practice Questions and Answers What is the distinctive pattern of inheritance found for X-linked recessive traits? a. Affects only males. b. Affected males have an affected father. c. Hemizygous males and homozygous females are affected. d. Mutant characters are combined. e. Affected individuals will always have an affected parent and an unaffected parent. - Ans:-c. Hemizygous males and homozygous females are affected. Which of the following statements...

BSC 1010 EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS 100% VERIFIED GRADED A++ _____ is when an organism has more than two complete sets of chromosomes. Polyploidy When part of the chromosome has flipped its ordinary order. Inversion Change in one base of DNA that creates a premature stop codon. Nonsense mutation Humans are _____ and have the XX-XY system of sex determination. mammals The _____ peptide binds to the _____ recognition particle to make sure that a ribosome that is ma...

LSU BIOLOGY 1001 CHAPTER 11 EXAMINATION QUESTIONS WITH CORRECT DETAILED ANSWERS (VERIFIED ANSWERS) ALREADY GRADED A+ meiosis - Answer-a diploid nucleus divides twice, producing 4 haploid nuclei and cytokinesis, which packages the 4 nuclei into separate cells Meiosis I - Answer-Separates Homologous Chromosomes into Two Haploid Daughter Nuclei Meiosis II - Answer-Separates Sister Chromatids into Four Daughter Nuclei Chiasmata - Answer-crosses where chromatids of the maternal and paterna...

MCCQE OBGYN QUESTIONS AND ANSWERS GRADED A+ How to screen and diagnose GDM: For regular patients: Do 50g OGTT at 24-28 weeks. <7.8mmol/L --> normal >10.3 --> GDM 7.8 - 10.3mmol/L --> proceed to 2hr 75g OGTT To dx IGT or GDM do the 2hr 75g OGTT. If you only have 1 abnormality, then it's IGT, if it's two abnormalities, then they have GDM: -if fasting plasma >5.3mmol/L -if 1hr glucose >10.6mmol/lL -if 2hr glucose >8.9mmol/L Types of prenatal screening te...

Exam 2 genetics portage learning 2023 complete study Guide 2023 /2024 Exam 2 Genetics Chapter 7  Nondisjunction in meiosis – can cause XXX Syndrome or XYY Condition  47 XYY – famous o There’s this idea that there is an over representation of XYY of men in prison o Some people think that people with XYY are more likely to become criminals or get put in jail o Above average in height and below average in intelligence  Sex determination o At 5 or 6 weeks there is a potentia...

NU 318 Genetics Test Study Guide With Complete Solution...

Exam 2 Genetics Chapter 7  Nondisjunction in meiosis – can cause XXX Syndrome or XYY Condition  47 XYY – famous o There’s this idea that there is an over representation of XYY of men in prison o Some people think that people with XYY are more likely to become criminals or get put in jail o Above average in height and below average in intelligence  Sex determination o At 5 or 6 weeks there is a potential for the fetus to get a Y chromosome and become a male  PAR: pseu...