7:09 PM Wed Apr 10 Three strains of green-seeded lentil plants appear to have the same phenotype. The strains are designated G1, G2, and G3. Each green- seeded strain is crossed to a purebreeding yellow-seeded strain designated Y. The F₁ of each cross are yellow; however, self- fertilization of F₁ plants produces F2 with different proportions of yellow- and green-seeded plants as shown below. Parental Strain F1 Phenotype F2 Phenotype Green Yellow Green Yellow 1 G1 Y All yellow G2 Y All yellow དྲུབ 16 37 G3 Y All yellow 64 341621 9 27 Part F 42% If green-seeded strains G₁ and G3 are crossed, what is the phenotype of F₁ progeny? Consider that G₁ is aaBBDD, and G3 is aabbdd. yellow green Submit Request Answer Part G If green-seeded strains G₁ and G3 are crossed, what is the genotype of F₁ progeny? Consider that G₁ is aaBBDD, and G3 is aabbdd. Submit Request Answer

7:09 PM Wed Apr 10 Three strains of green-seeded lentil plants appear to have the same phenotype. The strains are designated G1, G2, and G3. Each green- seeded strain is crossed to a purebreeding yellow-seeded strain designated Y. The F₁ of each cross are yellow; however, self- fertilization of F₁ plants produces F2 with different proportions of yellow- and green-seeded plants as shown below. Parental Strain F1 Phenotype F2 Phenotype Green Yellow Green Yellow 1 G1 Y All yellow G2 Y All yellow དྲུབ 16 37 G3 Y All yellow 64 341621 9 27 Part F 42% If green-seeded strains G₁ and G3 are crossed, what is the phenotype of F₁ progeny? Consider that G₁ is aaBBDD, and G3 is aabbdd. yellow green Submit Request Answer Part G If green-seeded strains G₁ and G3 are crossed, what is the genotype of F₁ progeny? Consider that G₁ is aaBBDD, and G3 is aabbdd. Submit Request Answer

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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7:09 PM Wed Apr 10 Three strains of green-seeded lentil plants appear to have the same phenotype. The strains are designated G1, G2, and G3. Each green- seeded strain is crossed to a purebreeding yellow-seeded strain designated Y. The F₁ of each cross are yellow; however, self- fertilization of F₁ plants produces F2 with different proportions of yellow- and green-seeded plants as shown below. Parental Strain F₁ Phenotype F2 Phenotype Green Yellow Green Yellow 1 G₁ Y All yellow 4 7 G2 Y All yellow 16 37 G3 Y All yellow 64 341626 9 27 Part A For what number of genes are variable alleles segregating in the G₁ X Y cross? Express your answer as an integer. There is/are Part B ΜΕ ΑΣΦ ? gene(s) segregating in the F2 of G₁ × Y For what number of genes are variable alleles segregating in the G2 X Y cross? Express your answer as an integer. There is/are ΜΕ ΑΣΦ ? gene(s) segregating in the F2 of G₁ × Y 42%
Summer squash exist in long, spherical, or disk shapes. When atrue-breeding long-shaped strain was crossed to a true-breedingdisk-shaped strain, all of the F1 offspring were disk-shaped. Whenthe F1 offspring were allowed to self-fertilize, the F2 generationconsisted of a ratio of 9 disk-shaped to 6 round-shaped to 1 longshaped. Assuming the shape of summer squash is governed by twodifferent genes, with each gene existing in two alleles, propose amechanism to account for this 9:6:1 ratio
S (smooth) is dominant to s (hairy) L (long pod) is dominant to I (short pod) (Ll is medium length) 7. Given this cross: Yy RR Bb SS LI (male) cross with yy RR Bb Ss Ll (female) a. How many different gametes can be formed by the female plant? b. How many different genotypes are possible in the F1 offspring? c. How many different phenotypes are possible in the F1 offspring? d. What percent of the F1 individuals will be: i. green, bitter, and smooth. ii. hairy, medium, and sweet iii. round, bitter, and long. 8. Two babies in a maternity ward have lost their identity bands, and there is some confusion about their footprint records. Baby #1 is type A blood; #2 is type B blood. If you are one of the mothers and your blood type is 0, which one of the following statements applies. Explain your answer. Neither baby could be yours. The type A baby is yours. The type B baby is yours. Either baby could be yours. 9. In cocker spaniels, the following genotypes and phenotypes are found: AABB =…
+ ec +/Y + + w/Y y ec +/Y + ec +/y ec w ++ w/y ec w у ес +у ес и Determine the order in which the three loci y, ec, and w Occur on the chromosome and prepare a linkage map. 7.22 A cross involving X-linked genes was made between yellow, bar, vermilion female fies and wild males, and the F1 females were crossed with y B v males. The following phenotypes were obtained when 1000 progeny were exam- ined: Dra ord ma the 7.2 546 244 160 50 + + + + Bv y Bv y+ + y+v y B+ and an and and and +B + re + + v ge Determine the order in which the three loci occur on the chromosome and prepare a linkage map. 7.23 Female Drosophila heterozygous for ebony (e"le), scarlet (st*/st), and spineless (ss*/ss) were testcrossed, and the following progeny were obtained: PROGENCY PHENOTYPES NUMBER ir Wild type Ebony Ebony, scarlet Ebony, spineless Ebony, scarlet, spineless Scarlet 67 8. 68 347 78 368 Scarlet, spineless Spineless (a) Are these genes linked? Justify your answer. (b) Write the genes given on a…
Two pure-breeding lines of petunia plants are crossed. Line 1 plants grow to a height of 54 cm, and Line 2 plants grow to a height of 18 cm. Petunia plant height is controlled by three genes, A, B and C. Line 1 has the genotype A₁A₁B₁B₁C₁C₁, and line 2 has the genotype A2A2B₂B₂C₂C₂. Assume that genotype alone determines plant height under ideal growth conditions and that the alleles of the three genes are additive. If the F1 plants are self crossed, what is the expected proportion of F2 plants with the genotype A₁A₁B₁B₁C₁C₁ 1/8 1/32 1/16 1/4 1/64
(a) DdGGww x DDGgWw ow being (b) ddggWw x DdGgww (c) DdGgWw x DdggWw (d) DdGgWW x DdGgWW de 10. What phenotypes are expected and in what proportion from each of the following crosses? (Assume D, G and Ware dominant over d, g and w, respectively.) mo to esc Ils ovit 101 SUO hamnow brid Jesus 1860 88 HOW bildicion baild am lemon a Bal 101 mem nem lemon
The trihybrid e+f+g+/efg is test crossed to the triple recessive efg/efg and the following genotypes were obtained in the progeny: efg = 2; efg = 28; e'fg* = 9; e*rg 32; efg 73; e*fg* = 10; ef g* =10; e'fg 2; %3D "The odd gene is The gene order is The gene distance between e-f is The gene distance between f-g is The gene distance between e-g is
n corn, male sterility is controlled by maternal cytoplasmic elements. This phenotype renders the male part of the corn plants (i.e the tassel) unable to produce fertile pollen; the female parts, however, remain receptive to pollination by pollen from male fertile corn plants. However, the presence of a nuclear fertility restorer gene F restores fertility to male sterile lines sing the cardboard chips, simulate the crosses indicated below. Give the genotypes and phenotypes of the offsprings in each cross, and properly label the nucleus and the cytoplasm of each individual in the cross Legend male sterile cytoplasm Male fertile cytoplasm FF nucleus Ff nucleus ff nucleus A. Male sterile female x FF male Explain the phenotype of the offspring B. Male sterile female x Ff male Explain the phenotype of the offspring
Mice of the genotypes A/A ; B/B ; C/C ; D/D ; S/S anda/a ; b/b ; c/c ; d/d ; s/s are crossed. The progeny are intercrossed. What phenotypes will be produced in the F2 andin what proportions? [The allele symbols stand for thefollowing: A = agouti, a = solid (nonagouti); B = blackpigment, b = brown; C = pigmented, c = albino; D =nondilution, d = dilution (milky color); S = unspotted,s = pigmented spots on white background.]
к, х Ааv AdBbCc AaBbCc No Spacing AaBbCc 三、相、 1 Normal Heading 1 Font Paragraph 6. Let's assume that the non-taster, daughter in question 5 is a carrier of the albino trait. She marries a Styles taster man, normally pigmented, whose mother was a non-taster albino. Show the cross between these parents. Genotype of the woman Genotype of the man Genotypes Phenotypes What is the chance that their child will be a taster? Footer What is the chance that their child will be albino? What is the chance that their child will be a taster albino? J.S.)
Mendelian ratios are modified in crosses involving autotetraploids.Assume that one plant expresses the dominant trait greenseeds and is homozygous (WWWW). This plant is crossed to onewith white seeds that is also homozygous (wwww). If only onedominant allele is sufficient to produce green seeds, predict theF1 and F2 results of such a cross. Assume that synapsis betweenchromosome pairs is random during meiosis.
In autotetraploid Chinese primrose (Primula sinensis L.), the gene controlling stigma color is very near the centromere of the chromosome carrying it. The allele G for green stigma is dominant to g for red stigmas. A homozygous green autotetraploid strain is crossed with a homozygous red autotetraploid strain. Each of the F1 GGgg plants would obtain 12 gametes which are 2GG, 8Gg, and 2g. How were these obtained?