Besides the Warrior gene, the only other genetic mutation directly correlated with “super-maleness” and violence is an extra Y chromosome at birth. True False Explain the answer.
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- _____ is a form of 46,XY intersex that affects chromosomal males. It is by far the most common form of 46,XY intersex. These individuals have testes that produce testosterone, but their bodies lack working androgen receptors. When these individuals are born they often have female-typical genitalia, and they develop female secondary sex characteristics at puberty. They also tend to develop a female gender identity. A) Androgen insensitivity syndrome B) Turner's syndrome C)Congenital adrenal hyperplasia D) 5-alpha reductase deficiencyBoth men and women produce testosterone, but concentrations of testosterone in the blood are generally higher in men than in women. However, the testosterone levels of some XX females fall within the range of testosterone levels of XY men. This overlap has created controversy within women’s sports. Testosterone is known to increase muscle mass and enhance some types of athletic performance, so some people have suggested that women with naturally high testosterone levels have an unfair competitive advantage. In 2011, the International Association of Athletics Federations (IAAF) adopted a policy that limits levels of testosterone in female athletes, saying that female athletes must not have a blood testosterone concentration greater than 10 nanomoles per liter (nmol/L), a level typically seen in men. Some elite female athletes have natural testosterone levels above this limit and have challenged the policy. Do you think that it is fair for XX females with naturally high testosterone…Quiz instr Question 32 Which characteristics are associated with Duchenne muscular dystrophy? O Y-linked genetic transmission; symptoms identified at 7-9 years of age O Y-linked genetic transmission; symptoms identified at 3-4 years of age O X-linked genetic transmission; symptoms identified at 3-4 years of age O X-linked genetic transmission; symptoms identified at birth Previous
- ฿ & 2 W S Because of the mechanism of sex determination, males of many species can be neither homozygous nor heterozygous. Such males are said to be. X mmand O complementary O hemizygous O dominant Orecessive O None of the answers listed is correct. Provide Feedback Submit Request Answer #3 C E D C $ 4 R F G Search or type URL % 5 V T G ^ 6 MacBook Pro B Y H & 7 5 U C *00 8 M 1- + ( 9 K H O ) O L command P . V I option { 21 ? + 11 = -Mutations Can Uncouple Chromosomal Sex from Phenotypic Sex Give an example of a situation in which genetic sex, gonadal sex, and phenotypic sex do not coincide. Explain why they do not coincide.Mutations Can Uncouple chromosomal Sex from Phenotypic Sex Discuss whether the following individuals (1) have male or female gonads, (2) are phenotypically male or female (discuss Wolffian/Mllerian ducts and external genitalia), and (3) are sterile or fertile. a. XY, homozygous for a recessive mutation in the testosterone biosynthetic pathway, producing no testosterone b. XX, heterozygous for a dominant mutation in the testosterone biosynthetic pathway, which causes continuous production of testosterone c. XY, heterozygous for a recessive mutation in the MIH gene d. XY, homozygous fora recessive mutation in the SRY gene that abolishes function
- Why are X-linked conditions more common in men than in women? Group of answer choices 1. men acquire two copies of the defective gene during fertilization. 2. men need to inherit only one copy of the recessive allele for the condition to be fully expressed. 3. the sex chromosomes are more active in men than in women. 4. the genes associated with the sex-linked conditions are linked to the Y chromosome, which determines maleness.Most individuals who have X-linked diseases are males because O males have an extra Y chromosome. males have an extra X chromosome, making them XXY. O males have only one copy of the X chromosome. O the diseases are triggered by the male sex hormone, testosterone.Flies and mammals use an XY chromosomal system of sex determination. Therefore, the mechanism to compensate for the higher gene dose on the two X-chromosomes in females compared to one X-chromosome in males is identical in both groups of animals! True False
- “Keeping it in the family!”- How do you think consanguinity is increasing the risk factors of genetic disorders? Explain with examplesIn which of the following cases will a Barr body be seen? only XX XY XO only XXY both XX and XXY(1) What is the karyotype for men who have an extra Y chromosome? Discuss all the ways you can test for this abnormality. (2) What is the karyotype for women who have an extra X-chromosome? Discuss all the ways you can test for this abnormality.