nite (b) in a certain species of flowering plants. If a tes AaBb) results in a 1 tall and white :1 short and red phe Read each of the following statements carefully. Select at are true (that you agree with). Leave any statemen. of agree with) un-selected.) the two genes could be very far apart on the same c the dihybrid parent represented two genes that are configuration. half of the progeny are from segregation alone while crossing over and then segregation:
Q: Plant breeders have long appreciated the phenomenoncalled hybrid vigor or heterosis, in which…
A: Heterosis: It is an outbreeding enhancement that improves quality in hybrid offspring. Mixing of…
Q: Are the following progeny numbers consistent with theresults expected from selfing a plant presumed…
A: Genetics is a branch of biology involved in the study of genes, genetic variation, and heredity in…
Q: Two different genes control the expression of kernel colour in Mexican black corn: a black pigment…
A: Given that, the expression of gene D is controlled by gene B and dotted phenotype occurs only when…
Q: Supposing two strains of autotetraploid plants are available and their genotypes are as follows.…
A: In genetics, the physical appearance of an individual is termed as phenotype whereas the genetic…
Q: Branch length in the plant Karlheinz rummeniggeus is under polygenic control. The phenotype exhibits…
A: The polygenic trait or characteristics is controlled by more than one genes. In this case multiple…
Q: I In some plants, a true-breeding, red-flowered strain gives all pink flowers when crossed with a…
A: Genes are the unit of inheritance. Genes coding for the different forms of a trait are called…
Q: In rice, male sterility is controlled by maternal cytoplasmic elements. This phenotype renders the…
A: For a variety of reasons, using male sterility decreases the cost of hybrid seed production. It…
Q: working type beetie that normally smooth, large and you discover 3 mutations that lead to the…
A: Since you posted more than 1 question, we will be answering the first for you. Please post the…
Q: In onions, male sterility is due to the interaction of a chromosomal allele pair hh and “sterile”…
A: As per our policy we are answering the first question only. Rest of the question kindly repost the…
Q: An ear of corn has a total of 381 grains, including 216 Purple & Smooth, 79 Purple & Shrunken, 65…
A: Answer: Introduction: From given data, there are four grain phenotypes in the ear of genetic corn:…
Q: . The two loci P and Bz are normally 36 m.u. apart on thesame arm of a certain plant chromosome. A…
A: It is given that two loci, p and Bz loci are placed at a distance of 36 map units (m.u). Both the…
Q: Morgan obtained a white-eyed male fly in a population containing many red-eyed flies that he thought…
A: Thomas Hunt Morgan selected Drosophila melanogaster as experimental material and performed a cross…
Q: A red flowered plant was crossed with a blue flowered plant and produced all purple flowered plants.…
A: (a). Number of phenotypes in a polygenic trait…
Q: Female Drosophila with cinnabar eye (cn) and vestigal wings (vg) were mated to males with roof wings…
A: Answer
Q: In tomatoes, regular leaves (L) are multilobed and serrated and potato leaves (l) are broad, smooth,…
A: We are authorized to answer only one question at a time, since you have not mentioned which question…
Q: A plant of phenotype 1 was selfed and in the progeny there were 100 individuals of phenotype 1 and…
A: Phenotype: The physical appearance of an organism is a result of the expression of genes present in…
Q: In a species of plant, two genes control flower color. The redallele (R) is dominant to the white…
A: An organism has a phenotype and genotype. Phenotype is the observable characteristics and genotype…
Q: In a certain species of flowering plants with a diploidgenome, four enzymes are involved in the…
A: The flower color in given species is dependent on four enzymes which are coded by genes present on…
Q: Two genes in tomatoes are 61 mu apart; normal fruit (F) isdominant to fasciated fruit (f ), and…
A: The given cross in tomatoes is between two genes for normal fruit (F) and fascinated fruit (f) and…
Q: Two recessive traits in mice—droopy ears and flaky tail—arecaused by genes that are located 6 mu…
A: Testcross for the above given information is:
Q: Fruit flies with one allele for curly wings (Cy) andone allele for normal wings (Cy+) have curly…
A: The phenomenon of inheritance involves genotypes and phenotypes. The genotype of an organism…
Q: You are studying cushion plants in New Zealand: the wild-type cushion plan has a wide canopy. You…
A: When the nucleotides sequences in the genome of an organism are altered or changed due to mistakes…
Q: F1 hybrids between two species of cotton, Gossypium barbadenseand Gossypium hirsutum, are very…
A: The DNA (deoxyribonucleic acid) is the genetic material that is inherited from the parents by the…
Q: In corn snakes, the wild-type color is brown. Oneautosomal recessive mutation causes the snake to…
A: In the given question the wild-type color is brown. One autosomal recessive mutation caused the…
Q: How long did it take Mendel to complete the experiment ?
A: Introduction: Gregor Mendel is known as the father of genetics. he conducted experiments on pea…
Q: TOPIC: Variations in Gene Expression In a cross involving polygenic inheritance, three (3) gene…
A: Polygenic inheritance is the term used to describe the inheritance of traits that are determined by…
Q: In tomatoes, regular leaves (L) are multilobed and serrated and potato leaves (l) are broad, smooth,…
A: Mendel's law of independent assortment states that the alleles of two different genes get sorted…
Q: - In dandelions, yellow flowers (L) are dominant to pink flowers (1), and tall plants (T') are…
A: Genes are the units that are responsible for inheritance. Genes that code for different forms of a…
Q: (purpie) a. What petal color would you expect in a pure breeding plant unable to catalyze the first…
A: Epistasis is the phenomenon, where multiple genes interact and influences the trait of the progeny.…
Q: Name Non-Mendelian Genetics - Practice 1. In plants known as "four o'clocks", the allele for the…
A: Answer
Q: . An RFLP analysis of two pure lines A/A • B/B and a/a • b/bshowed that the former was homozygous…
A: Genes are the fundamental biological unit of inheritance. They are deoxyribonucleic acid (DNA)…
Q: Hannah (with 2 n's) decided to expand on Ana's work by fencing a well isolated plot and deliberately…
A: Chi-square test is a simple way of evaluating whether the predictions of a genetic hypothesis agree…
Q: ybrid Cross - Parental (P) vill be observing the F, offspring of the cross shown in nage. The purple…
A: Dihybrid cross A dihybrid cross is done between same species having different phenotype. In…
Q: Gene mapping using the Three-point Testcross a) Given the following alleles that control seed…
A: In the problems given like the given question, we should first determine the parental genotypes and…
Q: no need to explain just need n=to know if it a.b.c and d. 1.) In a species of dog, a mutant gene…
A: Note: Since you have asked multiple questions, we will solve the first question for you. If you want…
Q: Hydrangeas are plants whose flowers change colour according the pH of the soil. Four cuttings were…
A: 1.Hydra gear are the unique type of plants to indicate the pH of the soil. 2.Actually, the blooms of…
Q: Given two strains of autotetraploid plants AAaa – in this plant the gene is close to the…
A: For AAaa gametes in F2 generation would be Aa and Aa . Genotypic ratio - 1:2:1 phenotypic ratio- 3:1…
Q: The fruit fly, Drosophila melanogaster, a vestigial female fly is mated to a male that is scarlet…
A: Coefficient of coincidence is the ratio between the number of observed double crossovers and the…
Q: Incomplete Dominance 1. In snapdragons, red flower color (R) is incompletely dominant over white…
A: Incomplete Dominance In snapdragons, red flower color (R) is incompletely dominant over white flower…
Q: In tomatoes, regular leaves (L) are multilobed and serrated and potato leaves (l) are broad, smooth,…
A: Law of independent assortment is Mendel's dihybrid cross . It states that During the time of…
Q: DIRECTIONS: All these genetic problems deal with pea plants and heir traits. Use the following key…
A: The genetic constitution is usually defined as the way that an organism is referred to as its…
Q: Knowing that the Curly leaf (Cy) is a dominant gene on chromosome 6, as it is useful in tracking…
A: In genetics the genes forms the basic forms of heredity. The genes contains some alternative forms…
Q: One form of male sterility in corn is maternally transmitted. Plants of a male-sterile line crossed…
A: Genetics or hereditary qualities is the investigation of genes and heredity of how certain…
Q: For practice construct a Genetic map with three genes in Arabidopsis plants. A short plant (hy) is…
A: Genetic Map : It is a type of chromosome map that shows the relative locations of genes and other…
Q: # of Green Leaves _________111______________ # of White Leaves ___________35______________ If a…
A: the question specifies that the no. of green leaves to be 111 (~105) and those of white to be 35.…
Q: Monohybrid Crosses DIRECTIONS: All these genetic probilems deal with pea plants and heir traits. Use…
A: Mendel uncovered the fundamental laws of heredity. His experiments demonstrated that the inheritance…
Q: 1) Give the genotype of the offspring (this time simply follow the given sequence above and separate…
A: There are three types of genes in Drosophila . These are :- I ) Cinnabar eyes :- Cinnabar eyes are…
Q: sses, you breeding Hed ór true-breeding Yellow lines to true-breeding Green lines. You notice that…
A: Genes are the stretch of DNA that codes for specific proteins.
Q: A test cross between a plant of genotype PpSs and the tester white plant with wrinkled seed coat…
A: According to Bartleby guidelines we are supposed to answer first three subparts in case of multiple…
Q: Two plants in a cross were each heterozygous for two gene pairs (AB/ab) whose loci are linked and 10…
A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…
Step by step
Solved in 2 steps
- Figure 8.10 In pea plants, purple flowers (P) are dominant to white (p), and yellow peas (Y) are dominant to green (y). What are the possible genotypes and phenotypes for a cross between PpYY and ppYy pea plants? How many squares would you need to complete a Punnett square analysis of this cross?In watermelons, bitter fruit (B) is dominant over sweet fruit (b), and yellow spots (S) are dominant over no spots (s). The genes for these two characteristics assort independently. A homozygous plant that has bitter fruit and yellow spots is crossed with a homozygous plant that has sweet fruit and no spots. The F1 are intercrossed to produce the F2. What will be the phenotypic ratios in the F2? 2. If an F1 plant is backcrossed with the bitter, yellow-spotted parent, what phenotypes and proportions are expected in the offspring? 3. If an F1 plant is backcrossed with the sweet, non-spotted parent, what phenotypes and proportions are expected in the offspring? 4. In cats, curled ears (Cu) result from an allele that is dominant over an allele for normal ears (cu). Black color results from an independently assorting allele (G) that is dominant over an allele for gray (g). A gray cat homozygous for curled ears is mated with a homozygous black cat with normal ears. All the F1…Consider this cross in pea plants: Tt Rr yy Aa × Tt rr Yy Aa, whereT = tall, t = dwarf, R = round, r = wrinkled, Y = yellow, y = green,A = axial, a = terminal. What is the expected phenotypic outcomeof this cross? Have one group of students solve this problem bymaking one big Punnett square, and have another group solve it bymaking four single-gene Punnett squares and using the multiplication method. Time each other to see who gets done first.
- Two genes in tomatoes are 61 mu apart; normal fruit (F) is dominantto fasciated (flattened) fruit ( f ), and normal number of leaves(Lf ) is dominant to leafy (lf ). A true-breeding plant with normalleaves and fruit was crossed to a leafy plant with fasciated fruit.The F1 offspring were then crossed to leafy plants with fasciatedfruit. If this cross produced 600 offspring, what are the expectednumbers of plants in each of the four possible categories: normalleaves, normal fruit; normal leaves, fasciated fruit; leafy, normalfruit; and leafy, fasciated fruit?In watermelons, bitter fruit (B) is dominant over sweet fruit (b), and yellow spots (S) are dominant over no spots (s). The genes for these two characteristics assort independently. A homozygous plant that has bitter fruit and yellow spots is crossed with a homozygous plant that has sweet fruit and no spots. The F1 are intercrossed to produce the F2. a. What are the phenotypic ratios in the F2? b. If an F1 plant is backcrossed with the bitter, yellow-spotted parent, what phenotypes and proportions are expected in the offspring? c. If an F1 plant is backcrossed with the sweet, unspotted parent, what phenotypes and proportions are expected in the offspring?. The genotype r/r ; p/p gives fowl a single comb, R/− ; P/−gives a walnut comb, r/r ; P/− gives a pea comb, andR/− ; p/p gives a rose comb (see the illustrations).Assume independent assortment.Single Walnut Pea Rosea. What comb types will appear in the F1 and in the F2and in what proportions if single-combed birds arecrossed with birds of a true-breeding walnut strain?b. What are the genotypes of the parents in a walnut ×rose mating from which the progeny are 38 rose, 38 walnut,18 pea, and 18 single?c. What are the genotypes of the parents in a walnut ×rose mating from which all the progeny are walnut?d. How many genotypes produce a walnut phenotype?Write them out
- Phenotypically wild-type female Drosophila, whose mothers had spineless bristles (ss) and fathers had ebony bodies (e), produced the following offspring when crossed to homozygous males with ebony bodies and spineless bristles: 43 ebony bodies and spineless bristles 49 wild type 336 ebony bodies, wild type bristles 328 spineless bristles and wild type body color What is the map distance between the ebony body and spineless bristles loci? Group of answer choices 12.2 43.9 24.4 87.8 6.1In tomatoes, serrated leaves (C) are dominant to lobed leaves and purple stems (P) are dominant to green stems (p) At the next cross between two plants. Two pure plants (CCpp X ccPP) are crossed and the F1 progeny are crossed. The following population of individuals is observed in F2: 192 toothed leaves, purple stems; 64 serrated leaves, green stems; 45 lobed leaves, purple stems; 19 lobed leaves, green stems. Propose a hypothesis to explain the results and using Chi square deny or accept your hypothesis. Can you show step by step how to get to the results?A true-breeding pea plant with round and green seeds was crossedto a true-breeding plant with wrinkled and yellow seeds. Roundand yellow seeds are the dominant traits. The F1 plants wereallowed to self-fertilize. What are the following probabilities forthe F2 generation?A. An F2 plant with wrinkled, yellow seeds.B. Three out of three F2 plants with round, yellow seeds.C. Five F2 plants in the following order: two have round, yellowseeds; one has round, green seeds; and two have wrinkled,green seeds.D. An F2 plant will not have round, yellow seeds
- From a presumed testcross of 2 plants of genotype Aa x aa (in which A represents red and a represents white petals on a plant) we get 5000 red petal plants, and 5400 white petals plants. Using the Chi-squared test, what chi-squared value do we get for this?Consider these two crosses and assume that independent segregation is exhibited by all gene pairs: RrmmTT x RRMmTtFfGg x FfGg Derive the gametic ratio of the second parent in each cross using the branching method. What proportion of the offspring in each cross will be heterozygous for all gene pairs? Derive the genotypic ratio for the offspring from each cross using the branching method. Show complete solutions.In four o’clock(a type of flowering plant), red color flowers exhibit incomplete dominance over white; when both exist together, the flowers are pink a) in a cross between a red flower and a white one, what is the genotype of the offspring? b) what is the genotypes ratio of the F2 generation of two of the F1 from (a) are crossed?