Mendel's P1 Dihybrid Cross bris oe First parental (P1) generation WWGG wWgg Gametes WG Wg ece First filial (F1) generation Genotype Phenotype WwGg round and yellow- seeded plants bns Figure 1.3 ww.euc Activity 4. SELF-CHECK 1. Based on the results of the dihybrid cross, can you tell which traits are dominant? Recessive? The P1 dihybrid cross is illustrated in Figure 1.3. Study it carefully. Capital letter W represents round pea seed which is dominant over wrinkled pea seed (w). Second parental (P2) generation (F1 self-pollinated ) Ww Gg WwGg WG WG noilaiooste ortf of WG Gametes lo oons Wg

Mendel's P1 Dihybrid Cross bris oe First parental (P1) generation WWGG wWgg Gametes WG Wg ece First filial (F1) generation Genotype Phenotype WwGg round and yellow- seeded plants bns Figure 1.3 ww.euc Activity 4. SELF-CHECK 1. Based on the results of the dihybrid cross, can you tell which traits are dominant? Recessive? The P1 dihybrid cross is illustrated in Figure 1.3. Study it carefully. Capital letter W represents round pea seed which is dominant over wrinkled pea seed (w). Second parental (P2) generation (F1 self-pollinated ) Ww Gg WwGg WG WG noilaiooste ortf of WG Gametes lo oons Wg

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter3: Transmission Of Genes From Generation To Generation

Section: Chapter Questions

Problem 18QP: More Crosses with Pea Plants: The Principle of Independent Assortment Determine the possible...

See similar textbooks

Similar questions

Variations on a Theme by Mendel A characteristic of snapdragons amenable to genetic analysis is flower color. Imagine that a true-breeding red- flowered variety is crossed to a pure line having white flowers. The progeny are exclusively pink-flowered. Diagram this cross, including genotypes for all P1 and F1 phenotypes. What is the mode of inheritance? Let F = red and f = white.
Crossing Pea Plants: Mendels Study of Single Traits An unspecified characteristic controlled by a single gene is examined in pea plants. Only two phenotypic states exist for this trait. One phenotypic state is completely dominant to the other. A heterozygous plant is self-crossed. What proportion of the progeny of plants exhibiting the dominant phenotype is homozygous?
Red-flowering snapdragons are homozygous for allele RI. White-flowing snapdragons are homozygous for a different allele (R2). Heterozygous plants (R1 R2) bear pink flowers. What phenotypes should appear among first-generation offspring of the crosses listed? What are the expected proportions for each phenotype? a. R1R1 R1R2 b. R1R1 R2R2 c. R1R2 R1R2 d. R1R2 R2R2
More Crosses with Pea Plants: The Principle of Independent Assortment Determine the possible genotypes of the following parents by analyzing the phenotypes of their children. In this case, we will assume that brown eyes (B) is dominant to blue (b) and that right-handedness (R) is dominant to left-handedness (r). a. Parents: brown eyes, right-handed brown eyes, right-handed Offspring: 3/4 brown eyes, right-handed 1/4 blue eyes, right-handed b. Parents: brown eyes, right-handed blue eyes, right-handed Offspring: 6/16 blue eyes, right-handed 2/16 blue eyes, left-handed 6/16 brown eyes, right-handed 2/16 brown eyes, left-handed c. Parents: brown eyes, right-handed blue eyes, left-handed Offspring: 1/4 brown eyes, right-handed 1/4 brown eyes, left-handed 1/4 blue eyes, right-handed 1/4 blue eyes, left-handed
Several alleles affect traits of roses, such as plant form and bud shape. Alleles of one gene govern whether a plant will be a climber (dominant) or shrubby (recessive). All F1 offspring from a cross between a true-breeding climber and a shrubby plant are climbers. If an F1 plant is crossed with a shrubby plant, about 50 percent of the offspring will be shrubby; 50 percent will be climbers. Using symbols A and a for the dominant and recessive alleles, make a Punnett- square diagram of the expected genotypes and phenotypes the cross between the F1 offspring and the shrubby plant.
4. Albinism is lethal in plants, but many plants produce albino offspring. If albino plants C always die before reproducing, how does albinism persist? Migh ne 5. Mendel crossed pea plants producing round seeds with those producing wrinkled seeds. Of 7,324 F2 seeds, 5,464 were round, and 1,860 were wrinkled. Using the symbols W and w for the alleles, (a) symbolize the original P₁ cross; Slover don pet (b) determine the parental gametes; 69 (c) show the F₁ offspring; (d) show a cross between two F₁ plants; dong berbella" 10. Jogolų ar preu 39 woy Your Mirb & ever ascohes berloste di ritod 8 201 artW.20 meylo evit bins tight pdchse sent sitt 10 euogysomod Ceadolise borbeis blirib o svad Jism adoles Parl (e) symbolize the F₁ gametes; and, odb seit (f) summarize the expected F2 results for phenotypes, genotypes and phenotype ratios. mun 100 3161 16 gr nation ritiw nam A (6) His neblinks Sylimstedt phow yd showenis uby sloy 6 or be 160 (0) endonce 100 to eno elouosis na (b) wari hot…
AKS 7b/7e Mendelian Inheritance In pea plants the allele for round seeds (R) is dominant to the allele for oval seeds (r). In a cross between the two heterozygous plants what percentage of the offspring will have round seeds? * O 75% O 50% O 25% O 100% This is a required question In pigeons, the allele for normal feathers (F) is dominant to the allele for frizzy feathers (f). If a purebred, normal feathered bird (FF) is crossed with a frizzy
BIU A- == 三E 12 - Match each of the following examples to the appropriate type of non-Mendelian inheritance. 1. A homozygous recessive genotype for the gene that encodes phenylalanine hydroxylase (which breaks down the amino acid phenylalanine) causes lighter skin color, a musty odor, differences in intellectual development, and seizures. 2. In pea plants, alleles of Gene W control flower color, with the dominant allele (W) leading to purple flower.color, and the recessive allele (w) leading to white flower color. Usually, a genotype of WW or Ww leads to purple flowers. However, when Gene C is homozygous recessive, WW or Ww plants always have white flowers. 3. In mallard ducks, feather coloring is controlled by Gene F. A dominant allele (F) leads to green head feathers, while a recessive allele (f) leads to brown head feathers. In male mallards, inheritance of one or more F alleles always leads to the green head feather trait. But female mallards always have brown head feathers,…
1. In incomplete dominance, the phenotype of ____ : only one allele is expresses both alleles is partially expressed neither of the alleles are expressed both alleles is expressed 2. For a particular quantitative trait, 1024 flowers were produced. One was white and one was the darkest red possible. How many polygene pairs are involved in flower color in this case? 3. A DNA topoisomerase that starts recombination when cut-and-repair mechanisms occur during meiotic recombination. 4. In crossing over studies on maize, scientist observed the following % crossing over between genes A, B, C, D: between A and D 10%, between A and C 3%, between genes C and D 7%, between genes A and B 5%, and between genes C and B 8%. On the basis of above observation, what is the correct sequence of genes A, B, C and D on the chromosome? 5. In the F2 progeny are a mixture of 3 dominant: 1 recessive for a trait. You picked a dominant plant at random. What will be the probability that this…
O e. Parent 2: Parent 1: Parent 2: ¡Ai QUESTION 9 Bi QUESTION 8 Let's assume that, in dragons, red scales (B) are dominant to green scales (b), and long tongues (S) are dominant to short tongues (s). The genes that determine these characteristics assort independently. A homozygous red, long-tongued dragon is crossed with a homozygous green, short-tongued dragon. If an F1 dragon is crossed to a homozygous green and homozygous short-tongued dragon, what phenotypes and proportions are expected in the offspring? O a. 100% green and long-tongued O b. ½ green and short-tongued & ½ red and long-tongued O c. ½ red and short-tongued & ½ green and long-tongued O d.% red and long-tongued, % red and short-tongued, ½ green and long-tongued, % green and short-tongued O e. 9/16 red, long-tongued, 3/16 green, long-tongued, 3/16 red, short-tongued, 1/16 green, short-tongued Save and Submit to save and submit. Click Save All Answers to save all answers. 000 MacBook Air
In a particular plant, long stem is dominant over short stem. This same plant may produce red flowers or white flowers with this trait showing nondominance. Cross a heterozygous long stemmed pink plant with a heterozygous long stemmed red flowering plant. 10. Genotype of the heterozygous long-stemmed pink Genotype of the heterozygous long-stemmed red Genotypes Phenotypes Created hv Amy Brown Science
188IS Add-oIS al text BIUA E E E E Times New. 12 1 4. Purple fur (P) is DOMINANT in monsters. Yellow fur (p) is RECESSIVE. What is the genotype of a PURE PURPLE monster? = What is the GENOTYPE of a HETEROZYGOUS purple monster? What is the GENOTYPE of a YELLOW monster? Using the punnet square above, make a cross between TWO HETEROZYGOUS PURPLE MONSTERS. POSSIBLE OFFSPRING GENOTYPES PHENOTYPES edu gear El