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Genetics
Give the F1 genotypes of GgXHXh and GgXhY
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- Based on cross 3 how why the father has the homozygous dominant (RR) and the mother heterozygous dominant (Rr)Below you will find a spreadsheet of the "class" data, use this to complete data table 2. Remember, the class is a total of 24 students, to calculate frequency use the genotype with the highest frequency for each characteristic and divide that number by 24. Don't forget to answer the question on the bottom of page 107! Gender Letters XY XX Sex X, Y 11 13 XX Homozygous Heterozygous Homozygous Recessive Genotype highest frequency Characteristic Dominant Aa Eyebrows Eye Shape Hitchhikers А, а R, r 14 10 11 3 Rr Hh Н, h D, d Е, е F,f G, g В, Ь 15 Earlobes 4 8. 12 dd Ee Tongue Roll Widows Peak 7 10 13 Ff Face Shape 9. 12 3 Gg Eye Color 14 Bb MacBook Air esc 4) FI F2 F4 F5 F6 F8 F9 F10 F1I F12 @ # $ &Let us practice it again! Analyze the pedigree below to answer the questions that follow. Huntington's disease a disorder in which nerve cells waste away, or disintegrate, is passed down through families. certain parts of the brain Huntington's diseate llustration ereated in htps://pregenygenetion.com/ 1. What members of the family above are affected with the Huntington's disease? 2. Tnere are no carriers ior Huntungton's disease you either have it or you do not. Is Huntington's disease caused-by a dominant or recessive trait? 3. Identify the genotypes of the following individuals using the pedigree above. (homozygous dominant, homozygous recessive, heterozygous). I- 1 II -1: II -3: III - 4 : 4. How many children did individuals I-1 and I-2 have? 5. How many girls did II-1 and II-2 have? How many have Huntington's Disease? 6. How are individuals III-2 and II-4 related? I-2 and III-5?
- estion 2 of 15 Ⓒ Macmillan Learning > Match each phenotype description to its corresponding sex chromosome genotype in humans. XX with SRY on X phenotypically female but karyotype indicates presence of both sex chromosomes XY with SRY deleted phenotypically male but karyotype indicates presence of only X chromosomes hp XXXX phenotypically female with some abnormalities and overexpression of X chromosome genes Answer Bank A 0 XXY phenotypically male with sterility and hypogonadism € US ES ☐ Attempt 2 Apr 1 XYY phenotypically male with an increase in average stature 3:52 STAYDraw a Punnett square. cross an XX woman with an XY man. How many kinds of eggs can a woman produce in terms of their sex chromosomes? How many kinds of sperm cells can men produce in terms of their sex chromosomes? In any given fertilization event, what is the chance that a child will be XX? XY? In any given fertilization event, what is the chance that a child will be male? Female?Progeny Pubescent Genotypes Parents Glabrous Pubescent x 76 79 Glabrous Pubescent x 58 Pubescent Glabrous 44 Glabrous Pubescent x 88 Glabrous Pubescent x 246 82 Pubescent
- TEST goo.g/CUYGKD 2.) A man with type A blood marries a woman with type B blood. Their child has type O blood. What are the genotypes of these three individuals? What genotypes, and in what frequencies, would you expect in future offspring from this marriage? 3. A man has six fingers on each hand and six toes on each foot. His wife and their daughter have the normal number of digits. Remember that extra digits is a dominant trait. What fraction of this couple's children would be expected to have extra digits?linked conditions from their mothers via Activity 3 Working Out Crosses Involving Sex-Linked Inheritance 1. A heterozygous woman carrying the recessive gene for red-green color blindness marries a man who is red-green color-blind. Assume the dominant gene is X (allele for normal color vision) and the recessive gene is X (determines red- green color blindness). The mother's genotype is XX, and the father's X^Y. Do a Punnett square to determine the answers to the following questions. According to the laws of probability, what percentage of all their children will be red-green color-blind? What is the percentage of red-green color-blind individuals by sex? % males; % females What percentage of all children will be carriers? What is the sex of the carriers? 2. A heterozygous woman carrying the recessive gene forFor question c1. I put 47, xxy I'm not sure and diagnosis would be trisomy 13 syndrome ?
- Continuing from the previous question. Ande, who has the genotype: AB*TUVFG RS*CDEWX is choose your answer... to have a phenotype as a result of their chromosome error. Ande and their partner (who does not have a chromosome error) produce a fertilized embryo. It is choose your answer... chromosome error due to the error in Ande's chromosomes. A that the embryo has a fatal choose your answer... likely (a calculable probability) unlikely (due to chance) --vivo V20 male or female. Remember that since most sex-linked traits are recessive, the person wno shows the trait can have no X's with big superscripted letters. So, y a male carries the trait, he must also show the trait. XDY XDXD XªY PXPX Carrier? (Yes or No) Has the Trait? (Yes or No) Male or Female Phenotype or Appearance of the Individual Guided Questions: 1. What chromosomes will result to a normal phenotype (normal spongy pore trait)? 2. Do all individuals who have the spongy tiny pore allele show it in their physical appearance? Why or why not? 3. Can males be a carrier of an X-linked recessive trait? How about females? Explain. 4. What will be the sex of an individual who is easily affected by an X-linked recessive trait? Why?. The Y chromosome is missing this section of the X chromosome. The lower sections Males are at greater risk for inheritingHuman females have two X chromosomes (XX); males have one X and one Y chromosome (XY). a. With respect to X chromosome alleles, how many different types of gametes can a male produce? b. If a female is homozygous for an allele on an X chromosome, how many types of gametes can she produce with respect to that allele? c. If a female is heterozygous for an X chromosome allele, how many types or gametes can she produce with respect to that allele?