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- ✔Listen 10 11 17 I Sex linked recessive Autosomal recessive Sex linked dominant Autosomal dominant {i 15 $Klinefelter syndrome (XXY) can most be easily diagnosed by _______. a. pedigree analysis. b. aneuploidy c. karyotyping d. phenotypic treatment/d/1n5NtidRwTwUzcDkDPi5Z9P_SHPZ91A-XH-pfftLbhNc/edit (1) O pols Add-ons Help Last edit was seconds ago BIUA ミ: 12 + ext Calibri I|1 6 I 2 Section 5: Trihybrid cross and Laws of probability For a trihybrid cross, in which inheritance of alleles for three genes is tracked, drawing a Punnett square that combines all three genes may not be practical. Instead the laws of probability may be used. The product law of probabilities says that when alleles for separate genes segregate independently, we can figure out the probability of a particular combined genotype by multiplying the probability of the alleles for each gene. 13. We cross a homozygous tall pea plant with yellow, round seeds to a homozygous dwarf pea plant with green, wrinkled seeds. All the F1 offspring are all tall plants with yellow, round seeds. a. What are the expected F2 ratios (use fractions) of tall and dwarf plants? b. What are the expected F2 ratios (use fractions) of yellow and green seeds? C. What are the expected F2…
- 8:09 AM Tue Apr 27 Inheritance and Pu Inheritance and Punnett Square Quiz Which of the following is a phenotype? O Aa red hair heterozygous DNAAav AaBbCc Normal No Spacing Heading 1 Paragraph Styles In man, two abnormal conditions, cataracts (C) in the eyes and excessive fragility (F) in the bones, seem to depend on separate dominant genes located on different chromosomes. Normal vision and normal bones are recessive traits. A man with cataracts and nomal bones, whose father had normal eyes, married a woman free from cataracts but with fragile bones. Her father had normal bones. 11. What is the genotype of the man with cataracts and nomal bones? What is the genotype of the woman with normal vision and fragile bones? What type of offspring might this couple expect? Genotypes Phenotypes What is the probability that their first child will, (a) be free from both abnormalities (b) have cataracts but not fragile bones (c) have fragile bones but not cataracts (d) have both cataracts and fragile bones? liliClasses SBI3C1-2 rr x rr Meet - rz pQLSeUir31BTTSeUl8EYpVNYpajrmzBg_g0n6oMivineMfM4k0w/viewform rr x Rr Classwork O Rrx Rr ORR X Rr Genet X SBI3C1-2 Genetics Two parents were known to be right-handed. Assuming that right-handed (R) is dominant to left-handed (r), what would be the genotypes of the parents if their son is left-handed? Google M Post Atte Sp * 1 poir
- 11:52 and ry bod es loc he al alle omi Tomo tted es, wh Show cemplete nis ne n the type ratios for each generatio pes an Other problems: How do you know the genotype of organisms with a dominant phenotype? Is it homozygous or heterozygous? 8. A pea plant exhibits a purple color, but you are unsure of its genotype. With what could you cross this plant to determine its genotype? Show all of your work for the cross. What is this type of cross called? Incomplete dominance: Genes code for the production of specific proteins, many of which are enzymes. Different alleles at a locus code for alternative forms of a protein that differ in structure and when the protein is an enzyme, often have different degrees of catalytic activity. Therefore, a heterozygote genotvpe produces an intermediate phenotype.21:09 Thu Oct 12 X Ĵ 00 Lecture Notes Progeny Phenotype SUT] sut SuT ... sut SUt sUt SUT Sut *Fine spines (s), smooth fruit (t), and uniform fruit color (u) are recessive traits in A cucumber that is cucumbers whose genes are linked on the same chromosome. heterozygous for all three traits is used in a testcross, and the following progeny are produced: Number of Progeny. 2 70 21 4 82 21 13. 17 230 a. Determine the order of the genes on the chromosome. 5. Linkage Practice Problems ✓ b. Calculate the map distance between the genes. Σ c. Determine the coefficient of coincidence and interference. 47% ů d. List the alleles found on the chromosome of the homozygous parents of the heterozygous plant used in the testcross. BFAlpQLSfiOhfAvlhxzCSiUll_6rt-nU5b0WI73UmWOxkOw8OCwk01ng/formResponse B 1 2 Bb x Bb b 4 The fur in both parents in this cross is * 1 B B Bb x Bb b 3 4 brown black O homozygous dominant homozygous recessive 3. 近
- IDENT PORTAL-Lir A Aeries Student Dashboard O Launch Meeting - Zoom O Advanced Biology Exam Mendel x A goformative.com/formatives/60065d5b16a20c0af8319cc9 * A I, A O net bookmarks M 3 4 8 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 -O-OO 13 Homozygous recessive, bb (blonde) is crossed with homozygous dominant, BB (brown). What is the probibility of Bb? Complete the Punnet Square 3 Show Your Work 25% 50% 0% 100% Mendel crossed twe heterozygous peas (Pp) for purple flowers. Purple (P) is dominant over white flowers. What is the probility of purple flowers? Complete a Punnett Square. 14 Show Your Work 20% O000Mr. Steve W. genetics question Albinism is a recessive autosomal trait for skin pigmentation. Hemophilia is a sex-linked recessive disorder of the blood. assign alleles to the traits A – normal skin pigmentation XH – normal blood a – albino Xh - hemophilia A double heterozygous woman marries a non-hemophilic man and is heterozygous for skin pigmentation. Double heterozygous means heterozygous for both traits. Aa for skin pigmentation and XHXh for blood traits. Therefore, the genotype of the woman is AaXHXh. Non-hemophilic man is XHY and heterozygous for skin pigmentation is Aa. The genotype, therefore, of the man is AaXHY. What is the probability that they will have: a child with normal skin? _____________________ a child with normal blood? _____________________ an albino girl? _____________________ A hemophilic boy? _____________________670 ODOS 5 The above pedigree is an autosomal dominant trait. You are trying to identify the gene responsible, so you start by looking at some variable markers to determine which ones might map near the disease gene. You look at 6 markers (A-F). The numbers refer to sizes in 1000 o bases. Individuals in bold have the trait Which marker (A-F) is most likely to be associated w the trait Individual A OT 1-1 1-2 2-1 2-2 2-3 2-4 2-5 3-5 3-6 NS43NI44 2 3,7 4,5 3 2,3 7 4,9 4,7 B 3 2,6 2,6 3,6 2,3 3,6 3,4 4,6 3 C 1,5 2,4 3,7 1,4 2,5 1,2 4,6 2,6 1,4 which marker (A-F) is most likely to be associated w the trait D 1,6 4,5 8,9 5,6 4,6 1,4 3,8 1,8 4,8 E 3,7 4,8 2,6 3,4 233455 3,4 4,7 5,8 5,7 4,7 F 2,9 4,7 1,3 2,4 7,9 2,4 2,9 2,9 4,9