Sry gene Study guides, Class notes & Summaries

organizing effects of male Answer The SRY gene stimulates the growth of wolfian ducts which causes the gonads to become testes (seminal vesicles and vas deferens). It inhibits (stops) the growth of female genitalia organizing effects of females Answer The absence of SRY gene makes to Mullerian ducts turn into ovaries and uterus activating effects for males Answer testosterone results in male sexual behavior but erection and orgasm are dependent on dopamine activating effects for femal...

chromosomal sex correct answers determines sex and occurs when sperm fuses with egg (fertilization) XX or XY gonadal sex correct answers primary sex determination testes or ovaries dictated by genes phenotypic sex correct answers secondary sex determination everything aside from gonads internal reproductive tract external genitalia dictated by hormones how many chromosomes? correct answers 22 autosome pairs XY or XX as the 23rd sex chromosome pair meiosis correct answers onl...

Bio 181 Chapter 13Sex Chromosomes - correct answer X (large) and Y (small) -only the ends of the Y chromosome have regions that are homologous with corresponding regions of x chromosomes SRY Gene - correct answer required for development of testes -sex determining region y protein Ovum - correct answer contains an x Sperm - correct answer can contain an x or y Sex-Linked Gene - correct answer gene located on either sex chromosome -50 to 60 Y-linked genes (found on Y chromosomes) ...

genetic analysis exam 2 questions & answers 2024 _____ have haplo-diploidy sex determination - ANSWER-bees which organism below exhibits temperature sex determination - ANSWER-alligators ddRAD sequencing developed by this person at Harvard - ANSWER-Dr. Hockstra XXY in drosophila and XXY in humans - ANSWER-in drosophila but in humans a bar body is an - ANSWER-inactivated x chromosome visible in the nucleus of a cell that is normally from a female body XX humans & drosophila - ...

Sexual Selection - results from competition for mats: relative parental investment -> relative reproductive rates -> operational sex ratio -> human mating system (mild polygyny) Predictions from sexual selection theory - Men competitive compared to women Men choosy compared to other male mammals Women choosy compared to men Women more competitive compared to other female mammals Cohen's d - a method of quantifying sex differences and shows difference in the means/pooled standard...

Nurs 6501 Midterm Exam Review Guide (Weeks 1-6) Cellular Processes and the Genetic Environment 1. Describe cellular processes and alterations within cellular processes. Movement. Muscle cells can generate forces that produce motion. Muscles that are attached to bones produce limb movements, whereas those that enclose hollow tubes or cavities move or empty contents when they contract. For example, the contraction of smooth muscle cells surrounding blood vessels changes the diameter of the vessel...

PHARM 204- Reproductive physiology Questions & Answers 2 major functions for gonads - ANS-1. produce games 2. secrete sex hormones __________ other than the testes produce androgens - ANS-adrenal cortex copulation - ANS-act of mating; sperm deposited into female to fertilize ovum a) after fertilization = b) 1st 2 months = c) after 2 months = - ANS-a) pregnancy or gestation b) embryo c) fetus parturition - ANS-act of giving birth SRY gene - ANS-sex determining region of the Y chromoso...

Traits encoded by genes located on the Y chromosome are termed Y-_____ traits. disjoined labeled dissociated linked - linked The sex that produces two different types of gametes with respect to the sex chromosomes is called the _____ sex. dioecious monoecious pseudoautosomal heterogametic - heterogametic Studies of rare white-eyed males in Drosophila crosses by _____ demonstrated that the gene for white eyes is on the X chromosome and confirmed the chromosome theory of inheritance. ...

Bio 101 EXAM 4 Questions With Verified Solutions What results if a fragment of a chromosome breaks off and then reattaches to the original chromosome at the same place but in the reverse direction? - answerAn inversion A couple has a child with Down syndrome. The mother is 39 years old at the time of delivery. Which of the following is the most probable cause of the child's condition? - answerNondisjunction occurred in one member of the couple during gamete production. In a typical anima...

Genetics Exam 3 Practice Test 50 Questions with Verified Answers Gene conversion results from A. Discontinuous replication B. Photoreactivation C. Mismatch repair D. Gap Repair E. C and D - CORRECT ANSWER E. C and D The picture below is two Holliday junctions in a pair of DNA molecules undergoing recombination Breakage and rejoining of the strands indicated by the arrows () and () results in crossover. A. 1 and 2 B. 2 and 3 C. 3 and 4 - CORRECT ANSWER B. 2 and 3 In eukaryoti...