Q: Macmillan Learning Determine whether each of the statements describes amyloid beta (AB) in…
A: Alzheimer's disease usually occurs after the age 65 and the chances of occurring this disease just…
Q: The tusked beetle can be grey or black, and has tusk-like protrusions that can be either long or…
A: In the given cross, we look at two traits: color and tusk length. The offspring show a mix of both…
Q: xplain why a non native species is not always considered to be an invasive species
A: Non-native species are those that are not native or indigenous to a particular region. These types…
Q: Bipedalism BA Option Possible Hypotheses: The data for the Laetoli individuals will be exactly…
A: Researchers have long been interested in this transition and have sought to understand when and why…
Q: In E. coli, the genes for histidine (his), arginine (arg), tyrosine (tyr), and valine (val)…
A: In this scenario, we are looking at the cotransduction of the histidine (his) and valine (val) genes…
Q: various bacteria are normally present in most of our body system. These "good" bacteria are…
A: Antibacterial creams serve as topical pharmaceutical formulations designed to combat bacterial…
Q: QUESTION 8 Emergent properties of living systems are defined as properties that O are apparent only…
A: A unicellular organism is an organism that consists of only a single cell, such as an amoeba,…
Q: QUESTION 39 If people are in a controlled environment where the light levels, temperature, visual…
A: The internal biological clock, also known as the circadian clock, is a natural timer inside our…
Q: The chain terminator method was used to sequence the following DNA fragment:…
A: The chain terminator method, also known as Sanger sequencing, is a powerful technique used to…
Q: Below is an image of an electrocardiogram (EKG) tracing. What does "4" represent? P S T R nh 4 1 2…
A: The heart is the muscular organ of a circulatory system composed of 4 chambers that are separated by…
Q: Which of these statements best describes gene expression in a damaged cell? In a damaged cell, p53…
A: The process by which the information encoded in a gene is converted into a function is known as gene…
Q: Chromosomal nondisjunction of the X chromosome in female gametes of humans means that live offspring…
A: Chromosomal nondisjunction is a genetic mistake that happens during cell division that occurs when…
Q: What happens during spermiogenesis in the male seminiferous tubules?
A: Spermatogenesis is the production of sperm from the germinal epithelium in the primary reproductive…
Q: Consider the data in the following table, derived from crossing a female fruit fly that was…
A: If two or more genes are located on the same chromosome then they are classified as linked genes.…
Q: Which bacterial cell structure is a good drug target because of the low risk of damaging ost cells?…
A: Drug target is special type of molecule in the body that is mainly protein, it is associated with a…
Q: Part 1: Fill in the Blanks Estimate the cell length in mm and um under the 40x and 100x objective.…
A: A microscope is an instrument that magnifies structures in such a way that one can see the…
Q: Which reading frame gives you the longest amino acid sequence? 5'3 Frame 1 5'3 Frame 2 5'3 Frame…
A: In the world of molecular biology, understanding reading frames is crucial for deciphering genetic…
Q: whihc of the following is the cell organelle that contains a variety of enzymes to alter the shape…
A: Within eukaryotic cells, various organelles play critical roles in processing and modifying proteins…
Q: Steps Step 1 Step 2 Step 3 Enzyme/s involved Pyruvate Oxidation Electron carriers ATP generation End…
A: Cellular respiration is a metabolic pathway involving the conversion of consumed food into usable…
Q: 1. During muscle contraction, hydrolysis of ATP results in a change in the conformation of actin a…
A: Muscle contraction is a complex physiological process that enables the body to move and perform a…
Q: G1 Prophase Prophase I Prophase II Gametes chromatids chromosomes tetrads
A: The indirect process of cell division in which the chromosomes of parent cells divide once, but…
Q: 47) Which statement illustrates the connection between natural selection and overreproduction of a…
A: Evolution is defined as seamless alteration in the inherited traits of an organism over numerous…
Q: Write 10 interesting facts about the Rubus Chingii plant
A: Rubus chingii, often known as Ching Ching, is a beautiful plant species in the Rosaceae family that…
Q: Each Escherichia coli cell weighs 5ng. How many cells are present in a colony that weighs 1mg?
A: E. coli is a rod-shaped, Gram-negative, facultative anaerobic coliform bacteria of the genus…
Q: 1. Which of the following statements are true about ocular lenses? A. They are found on the…
A: The instrument which is used to magnify small objects is known as microscope.. There are 3 types of…
Q: A black Labrador retriever with the genotype BbEe is crossed with a yellow Lab that has the genotype…
A: Genetics is defined as the study of heredity that is how characters are transferred from parents to…
Q: Imagine that a new type of psychoactive drug has been developed in a laboratory. It works by slowing…
A: Agonist helps in activating a target whereas antagonist binds to the target itself and does not…
Q: 10. Use the list of terms to the right to fill in the empty boxes in the image below
A: Plasmodesmata is found in plants. These are microscopic pores in plants cell walls. Its main…
Q: experiment would I conduct to test what pesticides are on my plants?
A: Note:- Sorry, as per honor code we are not allowed to share personal opinions however we will…
Q: Set-up: Two traits in beetles Antennae shape (R rounded, r pointed) Body color(O orange, o white)…
A: Genotypes are a distinct trait or combination of qualities that are determined by an organism's…
Q: Define independent assortment, linkage, and complete linkage
A: Genetics is a branch of biology that deals with the study of genetic variations, genes, and…
Q: . Why was the great oxygenation event important for mitochondrial development? a) In your own…
A: According to Bartelby's authoring guidelines, we can only answer the first question along with its…
Q: A diploid cell in a Canadian beaver will have 20 pairs of homologous chromosomes. Which of the…
A: A haploid gamete contains half the number of chromosomes as a diploid cell. In this case, a diploid…
Q: amount of protein / amount of mRNA mineN/ ↑ A 10 ↑ B time (minutes) 20 Bacteria were grown in…
A: RNA levels are shown by the solid line, while protein levels are represented by the dotted line.…
Q: What will happen to the rate of FPP synthesis when FPP concentration is very high Inhibition of an…
A: FPP is farensyl pyrophosphate, one of the intermediates in cholesterol biosynthesis. It is a huge…
Q: You are evaluating a 55 year old breast cancer patient who has been on Raloxifene and Pertuzumab for…
A: Tumor regression and remission after therapy
Q: Imagine you are studying the genetic basis of gout using GWAS and have available molecular markers…
A: In this exercise, we're exploring the results of a genome-wide association analysis of gout, as…
Q: What is the amount of sodium chloride 0.9%w/v solution to make the following ophthalmic preparation…
A: In ophthalmic preparations, achieving isotonicity is crucial to ensure safety and comfort for…
Q: Some antibiotics are effective against only a limited range of organisms. What is a term you learned…
A: Antibiotics are types of medications that destroy or slow down the growth of bacteria. Antibiotics…
Q: The first vessel that branches from the ascending aorta is the brachiocephalic artery. True False
A: Heart is the mesodermally derived organ and it is present in the thoracic cavity. The membrane that…
Q: What are some notes or take aways about this model? Model 1 – PopGen Fish Pond This model is an…
A: Evolution is a continuously occurring natural process by which living organisms adapt to the change…
Q: Suppose that you have a splinter that is embedded so deep in your foot that you cannot remove it…
A: Osmosis is the method through which water molecules pass through a membrane from one region with a…
Q: с A B
A: Dichotomous keyis defined as a tool that allows the user to identify the identity of items such as…
Q: The elodea cell is in what solution? O 0.9% NaCl distilled water O 0.3% NaCl O 10% NaCl
A: If two solutions with different osmotic potential are separated by a semipermeable membrane that…
Q: A cross between yeast strains ab x AB produces the following unordered tetrad a. Label each group of…
A: Tetrad analysis is a powerful tool for studying genetic linkage and recombination in yeast. By…
Q: Platypus have an n value of 26. How many chromatids, chromosomes and tetrads does a developing…
A: The platypus, a unique mammal with a haploid number (n) of 26, undergoes the process of meiosis to…
Q: The first heart sound is due to the: closing of the atrioventricular valves O closing of the…
A: Heart, is the main organ of circulatory system in vertebrates, It is located on the ventral side of…
Q: Which of the following is NOT labeled in this figure? Mid- Sagittal Section A B C D E F G optic…
A: The brain is a very complicated organ that performs many different tasks, such as thinking, memory,…
Q: (a) Induced fit (b) Active site (c) Transition state (d) AG" (e) Coenzymes (f) Holoenzyme (g)…
A: The protein that acts a biological catalyst is accelerating chemical reactions is known as enzyme.…
Q: The connective tissue is a Tissue that supports, protects, and gives structure to other tissues and…
A: The tissues which are derived from embryonic mesoderm, present throughout the body to support and…
Second, Question 8
![DNA from a strain with genotype a+b+c+d+ is used to transform a strain with a
genotype a-b-c-d-. Pair of genes are checked for cotransformation and the data was
collected.
Pair of genes
a+b+
b+c+
a+e+
d+c+
d+a+
Cotransformation
Yes
No
No
Yes
Yes
Pair of genes
c+e+
d+e+
b+e+
b+d+
a+c+
Cotransformation
Yes
No
No
No
No](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc42a53c5-a661-4e08-8bd7-4bdfe484c1d7%2F5a776a11-549d-4ce8-b249-64a27799e29e%2Fpxn423v_processed.png&w=3840&q=75)
![Using the data in #7, determine which locus is closest to a.
C
e
b
can't determine from the data](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc42a53c5-a661-4e08-8bd7-4bdfe484c1d7%2F5a776a11-549d-4ce8-b249-64a27799e29e%2F7v19e3_processed.png&w=3840&q=75)
![](/static/compass_v2/shared-icons/check-mark.png)
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)
- DNA from a strain of Bacillus subtilis with genotype a+ b+ c+ d+ e+ is used to transform a strain with genotype a− b− c− d− e−. Pairs of genes are checked for cotransformation, and the following results are obtained: Pair of genes Cotransformation Pair of genes Cotransformation a+ and b+ No b+ and d+ No a+ and c+ No b+ and e+ Yes a+ and d+ Yes c+ and d+ No a+ and e+ Yes c+ and e+ Yes b+ and c+ Yes d+ and e+ No On the basis of these results, what is the order of the genes on the bacterial chromosome?An Hfr strain that is hisE+ and pheA+ was mixed with a strain thatis hisE− and pheA−. The conjugation was interrupted and the percentageof recombinants for each gene was determined by streakingon a medium that lacked either histidine or phenylalanine. Thefollowing results were obtained:It was found that hisE is 4 minutes away from pabB. The gene pheA was shown to be 17 minutes from pabB. Draw a genetic map describing the locations of all three genes.An Hfr strain that is hisE+ and pheA+ was mixed with a strain thatis hisE− and pheA−. The conjugation was interrupted and the percentageof recombinants for each gene was determined by streakingon a medium that lacked either histidine or phenylalanine. Thefollowing results were obtained:Determine the map distance (in minutes) between these twogenes.
- DNA from a strain of Bacillus subtilis with genotype a* b* c* d* e* is used to transform a strain with genotype a b c d e. Pairs of genes are checked for cotransformation, and the following results are obtained: Pair of genes Cotransformation Pair of genes Cotransformatic a* and b* No b* and d* No a* and c* No b* and e* Yes a* and d* Yes c* and d* No a* and e* Yes c* and e* Yes b* and c* Yes d* and e* No On the basis of these results, what is the order of the genes on the bacterial chromosome?DNA obtalned from the indicated donor strains is used to TRANSFORM the indicated recipient strains. The resulting progeny are plated on minimal medium so that only wild- type recombinants are scored. The number of wild-types for each cross is given in the chart below. What is the order of the genes? Donor Recipient wid type colonies a-b- c+ a+ b+ c- 273 a- b+ c- a+ b-c+ 462 a- b+ C+ a+ b-c- 2 a b- C+ a- b+ c+ O 4-b-c a-o-b b-a-c cannot be determined Question 18 of 26An Hfrstrain that is a *b*c*d* e*f* g *h* is mated with an F strain that is a b e d e f gh. The mating is interrupted at 5 minutes interval, and the genotypes of the F recombinants are determined. The results obtained are tabulated in Table 2. Draw the map of the Hfrchromosome and indicate the position of the origin of transfer, the direction of the transfer and the minutes between genes. Table 2:Entry time of Hfr chromosome into recipient cell. Time a d e f h 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
- E. coli strain B (permissive) were co-infected with rlla and rllb mutant phage T4. Progeny were plated in a dilution series with the following results: Lawn Dilution Number of plaques Strain B 10-6 10 Strain K 10-4 What is the recombination frequency? Remember that the readout is viability and you cannot see the inviable progeny. Answer:The following recombinants are recovered when conjugation occurs between an a*d*g+ donor and an adg recipient. at d+ g+ = 84% a d g+ = 6% at d g+ = 10% a dt g+ = less than 1% What is the map distance between the a and d genes? 10 map units 74 map units less than 1 map unit 84 map units 6 map unitsAn Hfr strain of E. coli that is pro * thr leu * lac was "mated" with an F- strain that is pro thr leu lac. Conjugation was interrupted at 10, 13, 17, and 21 minutes with a kitchen blender, and the % occurrence of donor alleles in F- recombinants was determined at each time point (by replica plating cells on minimal media plates that lacked proline, threonine, leucine, or lactose). The data shown below were obtained. % occurrence pro" % occurrence thr* % occurrence leu* % occurrence lac+ Minutes phenotype phenotype phenotype phenotype 10 6. 13 318 1 20 17 41 11 2 29 21 45 18 10 36 What is the order of these four genes on the bacterial chromosome, starting from the origin? Please write your answer as genes separated by dashes, e.g., thr-leu-lac-pro.
- An Hfr strain that is leuA+ and thiL+ was mixed with a strain thatis leuA− and thiL−. In the data points shown in the following graph,the conjugation was interrupted at different time points, and thepercentage of recombinants for each gene was determined bystreaking on a medium that lacked either leucine or thiamine.Make a calculation.An Hfr strain is used to map three genes in an interrupted mating experiment. The cross is Hfr/a+b+c+ rif x F-a-b-c- rifr (note that rifr is resistance to the antibiotic rifampicin). The a+ gene is required for the biosynthesis of nutrient A, the b+ gene for nutrient B, and the c+ gene for nutrient C. The cross is initiated at time=0. At various times, the mating mixture is plated out on three different types of medium. Each plate contains minimal medium (MM) plus rifampicin, plus specific supplements that are listed in the table below. The results for each time interval are shown as the number of colonies growing on each plate.An Hfr strain is used to map three genes in an interrupted mating experiment. The cross is Hfr/a+b+c+ rif x F-a-b-c- rifr (note that rifr is resistance to the antibiotic rifampicin). The a+ gene is required for the biosynthesis of nutrient A, the b+ gene for nutrient B, and the c+ gene for nutrient C. The cross is initiated at time=0. At various times, the…A particular Hfr strain normally transmits the pro+marker as the last one in conjugation. In a cross of thisstrain with an F− strain, some pro+ recombinants are recovered early in the mating process. When these pro+cells are mixed with F−cells, the majority of the F− cellsare converted into pro+ cells that also carry the F factor.Explain these results.