Two diploid (2N) species of wheat are crossed T. aestivuma (N=20) and T. militinae (N=43), producing mostly infertile hybrid progeny. Rarely one of these progeny is particularly large and also fertile. If one of these fertile hybrids was crossed back to a T. militinae, how many bivalents would you expect to observe in meiosis I within the sterile plants produced by this second cross?
Q: This test determines the ability of bacteria to use citrate as source of carbon and inorganic…
A: The citrate test is utilized to check whether a bacterium species can use citrate as a source of…
Q: A dialysis bag that contains 20% sucrose solution is placed in a beaker with a 5% sucrose solution.…
A: Tonicity in chemical biology is a measurement of the effective osmotic pressure gradient, or the…
Q: CITRATE TEST This test determines the ability of bacteria to use citrate as source of carbon and…
A: CITRATE TEST This test determines the ability of bacteria to use citrate as source of carbon and…
Q: why is Symbiosis importnat to biodiversity?
A: Symbiosis can be described as an interpersonal relationship between two species in which they may…
Q: n a certain plant, the dominant form of gene P codes for purple flowers while the recessive form…
A: Gregor Mendel discovered the fundamental doctrines of inheritance through his study of pea plants.…
Q: PART 3: What's in a membrane? 1. Draw a small portion of a plasma membrane. Show and label the…
A: The plasma membrane is a selective barrier that regulates the entry of different molecules in and…
Q: What is the importance of photoperiod for seasonal change of physiology in lizards
A: The word photo can be split into two words "photo" relates to light and "period" refers to time or…
Q: Drink # Glucose Concentration in mM 1 2.455 mM 2 0.307 mM 3 3.750 mM 4 1.100 mM 5 1.500…
A: Glucose mol mass =c6h12o6 12*6+1*12+16*6 =180g/mole And we know 1M =1000mM So 1mM = 10^-3M 1.…
Q: You discovered a novel virus causing a new disease. Briefly describe how will you go about…
A: A novel virus is a newly identified virus strain that was earlier not discovered or identified. It…
Q: Name the storage products of carbohydrates as well as the metabolic pathways involved in the…
A: Carbohydrates or sugars are naturally occurring organic compounds containing carbon, oxygen, and…
Q: Question 4. Discuss below where you'd draw a dot on the chart below to indicate what you predict the…
A: Evolution is a continuously occurring process that causes a change in organisms…
Q: 9. Side A of a tube has a glucose concentration of 100 mOsm. Side B has a NaCl concentration of 100…
A: osmosis is the movement of water molecules from a solution with a high concentration of water…
Q: (b) Describe the role of each component of water potential in regulating the activity of: (i) An…
A: Water potential is a unit used to describe the potential energy of moving water between two systems.…
Q: CITRATE TEST This test determines the ability of bacteria to use citrate as source of carbon and…
A: CITRATE TEST This test determines the ability of bacteria to use citrate as source of carbon and…
Q: why flagella cannot be seen on motile bacteria under the 4mm objective?
A: Bacteria is the unicellular prokaryotic organism. Some bacteria are motile and few of the bacteria…
Q: as Liebig's chemical theory. He formulated his own theory arguing that the production of alcohol was…
A: Introduction Enzymes are the biocatalysts that speed up reactions at optimum temperature and pH.…
Q: 5. Unicorn lily flowers have four different alleles for flower color: purple, magenta, orange, or…
A: Alleles are the alternative forms of a gene that are located on same locus of a homologous…
Q: 11 Describe and draw what happens to a potato cube when placed in a hypotonic solution, a hypertonic…
A: Solution is a liquid that is formed by combination of solute and solvent. This means :- Solution =…
Q: Two diploid (2N) species of wheat are crossed T.aestivuma (N=23) and T.militinae (N=36), producing…
A: Lets us first make all the terms clear, Sterile means incapable to produce children or offspring.…
Q: what is a major comparison betwe tunicates and bonyfish
A: Tunicates and bony fishes belong to the Phylum Chordata. Tunicates belong to Subphylum Urochordate…
Q: The gene that determines ABO blood type and the gene that is mutated in Nail- Patella syndrome (NPS)…
A: Nail–patella syndrome is a genetic ailment that consequences in small, poorly evolved nails and…
Q: Describe how thermodynamics and metabolic are relate
A: INTRODUCTION Thermodynamics : It is the study of relationship between heat, work, temperature and…
Q: 16. Some examples of nonpolar molecules include fats, oils, and waxes. How do these substances…
A: >> Fats, oils and waxes do not generally interact with water unless they are forced with some…
Q: 4. A closed-circular DNA molecule in its relaxed form has an Lk of 500. Approximately how many base…
A:
Q: In detail describe how thermodynamics and metabolism are rela
A: Introduction :- Your body turns the food and liquid you consume into energy through a process known…
Q: Explain mechanism of action of these pesticides to cause mutations at DNA, metabolic level or cell…
A: Pesticides are chemical compounds that are used to kill pests, including insects, rodents, fungi and…
Q: Fragile X is a disorder which causes mental impairment in affected individuals. The trait which is…
A: The trait in question is X linked recessive trait. This means that the trait in question is a sex…
Q: Below is a list of statements that can be sorted into two categories: value claim and scientific…
A: Fossil fuels are the natural fuels which are formed by the anaerobic decomposition of the buried…
Q: what is the term used to described how water enters the paramecium
A: Introduction Paramecium is a genus of unicellular ciliates, commonly studied as a representative of…
Q: beta-thalassemia
A: Hemoglobin: Hemoglobin is the iron-containing protein in red blood cells which carries oxygen to…
Q: Suppose that you found a species S. ambivala that is closely related to S. latifolia, such that they…
A: Sex determination in plants: females are denoted by XX males are denoted by XY The structure of Y…
Q: What makes Science different from other subjects?
A: Science can be defined as the pursuit of knowledge and understanding of the social and natural…
Q: bacterial species that make pores in human cell membrane
A: Bacteria are prokaryotic organisms that lack cellular organelles and contain their genetic material…
Q: 6. How, specifically, can the BCR-ABL protein be inhibited, and what causes this inhibition to…
A: Anticancer medications inhibit cell reproduction and may not prevent cancer cells from spreading.…
Q: Describe the steps for amylase production from fungus.
A: Explanation: 1. Isolation of amylase-producing fungus: The first step in amylase production from…
Q: Which of the following facts are the most dangerous to the human body when present in excess…
A: Trans fatty acid has the two hydrogen atoms on opposite sides.
Q: C-12 and C-13 differ by the number of electrons with C-13 having an extra electron in the outer most…
A: Atoms that contain the same quantity of protons but different quantities of neutrons are called…
Q: 6. Complete the following table: SOLUTE NaCl Urea CaCl₂ CaCl₂ MOLARITY (mole/L) 3 0.2 OSMOLARITY…
A: In healthcare settings and biology labs, it’s frequently useful to consider how answers will have an…
Q: The unfinished peptide Met-Arg-Ser-Tyr-Gln-Cys-Pro is held in the P-site of the 708 ribosomal…
A: The process of synthesis of protein based on the information carried by mRNA is called translation.…
Q: Know the central role of thrombin and list the highlighted roles of thrombin Describe how…
A: Thrombin It is a serine protease enzyme that is coded by the gene F2 gene in humans. It is formed by…
Q: 2. Two parents know their blood types (phenotype), but not their genotype. Blood type is an example…
A: The blood group shows a codominant mode of inheritance where both alleles (A and B ) are equally…
Q: 6. Which of the following statements concerning the BLOSUM62 substitution matrix is correct? a. Ala…
A: Introduction: For BLASTP, the default scoring matrix is the BLOSUM62( BLOcks SUBstitution…
Q: What is the significance of bipedalism for hominins? What benefits does bipedalism offer and what…
A: Bipedalism is the use of only rear limbs for locomotion. The rear limbs in these individuals have…
Q: Name and explain the mechanism of action of the anticoagulants: calcium chelators (oxalate, citrate,…
A: A process known as the coagulation cascade occurs whenever there is bleeding in the body, and it…
Q: In a certain plant, the dominant form of gene B codes for blue fruit, while the recessive form…
A: As per the question: F1 cross: Parents: Doubly homozygous dominant white fruited plant (EEBB) and…
Q: Outline the functions of the following hormones in relation to digestion and/or the maintenance of…
A: Your body uses hormones as chemical messengers. They move to tissues or organs through your…
Q: In this question, determine the values for the linking number (L), super helical turns (AL), the…
A: The linking number states the number of times a strand of DNA winds in the right-handed direction…
Q: Describe the sequence of events in physiological coagulation. 2) Explain the role of the following…
A: Coagulation is a series of processes resulting in the cessation of bleeding at a wound or injury.
Q: 4. Indicate whether each of the following conditions would increase or decrease the rate of…
A: Glycogenolysis: It is a biochemical process in which glycogen is break down into glucose and glucose…
Q: 1. Write if the statement is true and modify the statement with the correct answer if its false a.…
A: There are a few important points : The E.coli enzyme beta-galactosidase is a large polypeptide that…
Pls someone explain this to me. I literally have no idea why the answer is 43. Any explanation for me to understand greatly appreciated and i will give thumbs up.
Step by step
Solved in 2 steps
- Question- 1. In onions, male sterility is due to the interaction of a chromosomal allele pair hh and “sterile” (S) cytoplasm. All other combinations (i.e. HH/Hh and “sterile” cytoplasm, HH/Hh or hh “fertile” (F) cytoplasm) result in male-fertile plants. The male-sterile trait is incorporated into inbred lines to produce hybrid F1 seed on a commercial scale.a) How would you perpetuate the male-sterile line? Show the cross.b) Briefly outline the method of producing hybrid seed (heterozygote) for the commercial crop. Show the cross.c) Does it matter whether the cytoplasm is fertile or sterile in the male-fertile inbred? Explain.Question 11 D Blue allele Chromosome Brown allele The color of pigeon feathers is a heritable trait that is controlled by different alleles of a single gene as represented in the figure, Blue feather color is dominant to brown feather color. Which of the following statements is true about pigeons with blue feathers and pigeons with brown feathers? They have identical DNA sequences in the feather-color gene. They have identical genotypes for the feather-color gene.QUESTION 42 Two different populations that have a high degree of gene flow are expected to… a. have similar levels of heterozygosity. b. have an FST close to 1. c. be completely isolated from each other. d. vary in allele frequency from one another.
- Question 1: In tomatoes, round fruit (O) is dominant to oblong fruit (o). Write as much as possible of the genotypes of: (A) A plant from a homozygous round-fruited stock (B) A plant from an oblong strain (C) A round-fruited plant which resulted from a testcross (D) A oblong-fruited plant which resulted from the cross of two round-fruited ones.QUESTION 5. The pedigree below follows the appearance of a rare autosomal dominant condition resulting in malformation of limbs through a family. What is the penetrance of this trait? i.e., What is the ratio between the number of individuals in the pedigree who display the trait (numerator) and the number of individuals you know from the pedigree must have the trait-determining genotype (denominator)? Enter your answer in the form of a fraction without any spaces. e.g., If your answer is “one-fourth”, enter: 1/4QUESTION 23 Allele frequencies for eye color in a population of hippogriffs is p=0.73. How many individuals would you expect to be heterozygous in a population 150? (Assume HWE)
- QUESTION 35 You are conducting a QTL analysis to better understand monkey flower color and shape. To begin you start with breeding a plant that produces a long white tubular flower with purple flat flower. You continue your breeding for many generations. Which of the following is something you most likely observe? a. Variation in flowers your F2 population far exceeded the parental generation characteristics. b. The flower phenotypes did not correlate between siblings and between parent-offspring pairs. c. The variation in phenotypes is greater in the F2 population compared to the F1 population. d. Through selective breeding of the F1 individuals you could not recover the parental generation.Question:- 3. Wild type Drosophila has red eyes and gray body*. Autosomal recessive mutations sepia (se) and ebony (e) modify the eye and body color, respectively. What kind of a cross (or crosses) can you set up to determine whether the two genes are linked? You have several lines to choose from: a pure-breeding wild type line (where alleles for both, sepia and ebony are wild type), a double homozygous recessive line, a pure breeding sepia mutant line and a pure breeding ebony mutant line. You don’t have to use all of them. (a) Write down the cross (or crosses, if necessary) which will allow you to determine linkage; include genotypes of both crossed individuals (b) What kind of results (offspring) do you expect if the two genes are linked? (c) What kind of results (offspring) do you expect if the two genes are not linked? For (b) and (c), state the phenotypes, genotypes and numbers.Question 12 In a series of crosses involving pea plants that have round or wrinkled seeds (round is dominant to wrinkled) and yellow or green seeds (yellow is dominant to green), the following ratios were observed in the progeny: Parents -----> Progeny a) round, green x wrinkled, yellow -----> 100% round, yellow b) round, yellow x round, yellow -----> 9/16 round, yellow 3/16 round, green 3/16 wrinkled, yellow 1/16 wrinkled, green c) round, yellow x round, yellow -----> 3/4 round, yellow 1/4 wrinkled, yellow d) wrinkled, yellow x round, yellow -----> 6/16 wrinkled, yellow 2/16 wrinkled, green 6/16 round, yellow 2/16 round, green On the basis of these progeny ratios, determine a possible genotype for each of the parent plants in each set of crosses (a,b, c, and d). Sometimes more than one genotype is possible, but you need only suggest one.
- Question 6 Albinism is caused by an autosomal recessive allele that interferes with skin pigmentation in mammals. Two normally pigmented human parents already have an albino boy. They plan to continue to have children until they get a girl. Some or all of this information is important for each of the questions below. a) What is the probability that their next child (currently unborn) will be a girl with albinism? Explain your reasoning. b) What is the probability their first female child will be albino? Explain your reasoning. c) The answer to part (b) is different (and, yes, the answer is different) from the answer to part (a). Explain why. (Hint: it has something to do with the underlined words.)QUESTION 40 Under what situation would you expect haplotype frequencies to remain unchanged from one generation to the next? a. the recombination rate is zero b. the coefficient of LD is 0.5 c. the two loci are in linkage disequilibrium d. crossing over between two loci occurs regularlyQUESTION 13 Feather color in a certain species of bird is controlled by a pair of alleles that exhibit incomplete dominance. If birds that are homozygous for one allele are black and birds that are homozygous for the other allele are white, then heterozygous birds would be a. gray. b. white. c. black. QUESTION 20 Which of the following might explain how two separate genes control a single trait? a. One gene function better at higher temperatures. b. Both genes have the same alleles. c. There are two genes to control two separate steps in a pathway. d. Two genes cannot control a single trait.