Sry gene Study guides, Revision notes & Summaries

Which gametes are responsible for sex? correct answer: The sex chromosomes (X or Y) Bipotential Primordium correct answer: Has both mullerian duct and wolffian duct, potential for either male or female development. XX Structure development correct answer: Mullerian duct persists and forms the fallopian tube, uterus, and upper third of the vagina, including the cervix. Wolffian duct regresses due to lack of testosterone. Gondal cortex forms ovary, gondal medulla regresses. XY extra ge...

Green River College: BIOL 100 Unit 3 Notes Latest Updated Chapter 6: Energy for life Learning Objectives: 1. Identify the cellular structure where photosynthesis occurs and describe its function. 2. State the overall chemical equation for photosynthesis. 3. Recognize what is meant by the terms reduction and oxidation. 4. Describe the function of photosynthetic pigments. 5. Explain the flow of electrons in the light reactions. 6. Explain how ATP and NADPH are generated in the light reac...

Heterozygous - When two different alleles combine to form a trait. Example: A tall person and a short person have a child who is short. The short allele is dominant so the child grew up to be short. Gene - A section of DNA that controls a certain trait. Example: Eye color. Dominant - Determines the expression of a trait (visually). Example: Brown eyes, dark hair. Homozygous - A homozygous trait is when two of the same kind of alleles combine to form a trait. Example: When two tall...

A human with an XY chromosome pair appears female. All of the following are possible explanations for this condition except: a. this person suffers from Turner syndrome. b. this person has a non-functional SRY gene. c. this person lacks the SRY gene. d. this person does not make testosterone correct answer: a When Morgan crossed a red-eyed female with a white-eyed male, which results made Morgan think that the locus affecting eye color was on the X chromosome? a. All F1 male and ...

Heterozygous - When two different alleles combine to form a trait. Example: A tall person and a short person have a child who is short. The short allele is dominant so the child grew up to be short. Gene - A section of DNA that controls a certain trait. Example: Eye color. Dominant - Determines the expression of a trait (visually). Example: Brown eyes, dark hair. Homozygous - A homozygous trait is when two of the same kind of alleles combine to form a trait. Example: When two tall people ...

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...

Gene vs Allele - Answer-Gene: A section of DNA that controls a certain trait. Example: Eye color. Allele: A specific variation of a gene. Example: Having blue eyes. Dominant vs Recessive - Answer-Dominant: Determines the expression of a trait (visually). Example: Brown eyes, dark hair. Recessive: Much less likely to determine the expression of a trait. Example: Blue eyes, blonde hair. Homozygous vs Heterozygous - Answer-Homozygous: A homozygous trait is when two of the same kind of allel...

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...

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...

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 - ...