X-linked ichthyosis is an X-linked recessive trait that manifests in part as dry, scaly skin (“ichthy-” = fish or fish like). Suppose a couple are considering having a child together. Parent A is heterozygous for the ichthyosis allele while Parent B is hemizygous negative for the ichthyosis allele. What is the probability their child would be unafflicted with ichthyosis but be a carrier of the ichthyosis-causing allele? a.0% b.25% c.50% d.75% e.100%

Q: DNA Structure: The shape of DNA is known as a Double Helix The shape looks like a twisted ladder The…

A: DNA is a long polymer of deoxyribonucleotides. The length of a DNA is defined as the number of…

Q: Choose 1 organism below and propose a method of fossilization that most appropriately matches the…

A: The fossil record is a highly organized series of fossils discovered in sedimentary rock strata.…

Q: Pollen contains the complete genetic material of the plant and is airborne. Describe ways in which…

A: Issues regarding the environmental effect of genetically modified crops are now limiting their…

Q: Assume that birds with the genotype L L have blue feathers, and those who have at least one…

A: A trait is a characteristic feature that is unique to specific individual.  As per the question,…

Q: 15. What is the relationship between molecular mass and mobility in the gel?

A: Disclaimer: - According to Bartleby guidelines, only the first questions can be answered unless…

Q: This is one given problem on my homework assignment for developmental biology. Thank you for the…

A: Retinoic acid (RA) One of the first chemicals discovered in the modern period of experimental…

Q: The following data indicates the percentage of time an average animal cell spends in each part of…

A: A cell cycle is defined as a series of events which takes place in a cell as it grows and divides. A…

Q: Type S Streptococcus pneumoniae bacterium is lethal and will kill its host. If heat inactivated the…

A: The famous transformation experiment in bacteria was performed Frederick Griffith in the bacterium…

Q: (Remember to use the letter of the dominant trait) Widow's peak is dominant to normal hairline…

A: There are two alleles present in a gene.  The curly hair is dominant over straight hair. The C…

Q: Fungi can reproduce through are the result of mitosis of differentiated haploid mycelia. asexual…

A: Introduction  Any member of the eukaryotic group of organisms, which also includes yeasts, molds,…

Q: How did this pandemic change the outlook on infectious disease?

A: Infectious diseases are diseases caused by the entrance into and multiplication in the body by the…

Q: In a certain population of frogs, 120 are green, 60 are brownish green, and 20 are brown. The allele…

A:

Q: What other methods can be used to determine the microbiological quality of water? What infectious…

A: Answer : The other  suitable method for examining the presence of microorganisms in water is…

Q: impact to patience of isolating T cells from blood sample (magnetic beads coated with CD4/CD8…

A: T cells help B- cells to make antibodies, they belong to the immune system called adaptive immune…

Q: sed on the information above, what would be the relationship between a flea and its mine or feline…

A: Omnivore carnivore- omnivores are eating both plant and animal sources where is carnivores feed only…

Q: On the human body outline on the next page, draw in the following endocrine glands in their proper…

A: Introduction  A complex system of glands and organs makes up the endocrine system. It makes use of…

Q: What should the mRNA molecule of a regular mRNA vaccine contain to be translated accurately by our…

A: The correct answers are as follows- B. Poly A tail D. 5' cap E. Flanking UTRs F. Promoter The mRNA…

Q: Specify the value then add the unit of measurement. 100 beats/min A. The specified hypothetical SV…

A: Cardiac output (CO) is defined as volume of blood pumped out by left ventricle per minute. Note CO =…

Q: As DNA methylation increases, chromatin compaction... Oincreases Odecreases

A: introduction : DNA methylation is an epigenetic process in which a methyl group is added to the…

Q: The significance that CAR T- cell therapy have on patience with tumours

A: CAR T-cell therapy is a form of immunotherapy that has been used to treat patients with certain…

Q: Describe the structure and composition of the radula. Which molluscan classes use this structure for…

A: Introduction  The molluscs contain numerous well-known creatures, such as clams, snails, slugs, and…

Q: Write at least 2-3 features of each step of respiration metabolism

A: Cellular respiration is the collective name for metabolic processes that help cells produce ATP…

Q: For this plant with binomial name Ixora coccinea L., What is the reference to the publication of…

A: Ixora coccinea L. is a popular flowering plant. The binomial nomenclature was put forward by Carl…

Q: bottlenecks. What are the typical growth rates and what are the requirements for microalgal growth…

A: Algae can be grown into  photobioreactors, open ponds, raceways or closed systems.

Q: The presence of what organism is sometimes used as an indicator that there is sewage present in the…

A: Sewage is wastewater that has passed through sewers. Micro and macro pollutants, animal wastes,…

Q: Why is the Mediator Complex only required for transcription in vivo but is dispensable in vitro?…

A: The Transcription is the process through which the DNA is transcribed into the RNA.    The…

Q: Which of the following statements are true regarding genetic variation in sexual reproduction…

A: Sexual reproduction is basically the production of new organisms by the fertilization of two gametes…

Q: Mutations in the IL2RG gene cause approximately 30 percent of severe combined immunodeficiency…

A: Since we answer only three subparts of a question at a time, therefore we are answering the first…

Q: Explain the SIX (6)  main systems of the body and their major functions? Do answer quickly

A: The human body consist of many systems due to which human body is called complex system and the…

Q: The following diagram indicates how the cell cycle progresses in typical human cells: INTERPHASE G₁…

A: Drugs targeted to reduce the spread of tumor cells work on the principle of inhibiting cell division…

Q: Background: Define biodiversity, its ecological importance of the Squirrel that has been researched…

A: Biodiversity  can be defined as all the living habitat around us.The variety of species in a…

Q: What do pink to dark red colonies with a metallic surface sheen indicate on Endo agar?

A: Microbiology is a branch of biology that aims to study the small and microscopic organisms that…

Q: Describe the Facility Planning and the Procedure for obtaining Clearance for Radiation Therapy

A: Radiotherapy is recommended to treat cancer. Here X-ray beam is used to destroy cancer cells.…

Q: 3. Is the carbon dioxide the nutrient or product, or both in animal cell culturing?

A: Animal tissue culture is an invitro aseptic technique of growing cells on a specific medium. The…

Q: The bacterium Agrobacterium infects plants and causes plant cells to develop tumorlike cellular…

A: In the wild, the A. tumefaciens wild type causes "crown gall disease," which is characterized by the…

Q: this did not answer d, e, and f of part (c)

A: The enzymes here given are those enzymes which mainly control the metabolism of glucose and…

Q: Squirrel’s probable causes for the endangerment, extirpation, etc Please include references you use…

A: Due to some human activity, species can enter into a new geographical area which is different form…

Q: The figure below illustrates partial models of a starch molecule and a cellulose molecule, two…

A: Introduction The carbon compounds present in living organisms are collectively known as…

Q: Do protein levels increase or decrease as DNA methylation increases

A: DNA is the structure that stores genetic information. The genes are composed of DNA segments and…

Q: Which of the following statements is most directly described by the first law of thermodynamics? A B…

A: First law of thermodynamics is a kind of energy conservation law which states that energy can…

Q: 3. Briefly explain how the innate and adaptive (cellular and humoral) immune systems work to provide…

A: Innate and adaptive (cellular and humoral) immune systems. Innate immunity The early responses of…

Q: About 85% effective About 88% effective Ejaculation outside of vagina Prevents entry of sperm into…

A: This question deals about the methods which control population. These are the contraceptive…

Q: Wood Frog Bullfrog Green frog Mink frog Leopard Frog American toad Fowler's toad Spring peeper Gray…

A: A phylogenetic tree is a diagram that presents the evolutionary relationship between the organisms.…

Q: LO74 Explain how epigenetic markers are inherited. How do epigenetic marks compare in monozygotic…

A: Introduction :  Changes in the expression and operation of the genes are a part of the epigenetics…

Q: c. Microbes getting busy... Due to respiration, bacteria can increase the concentration of CO₂ in…

A: It is simple to express the level of soil alkalinity in terms of pH values. The pH scale has 14…

Q: If microorganisms penetrate the innate defenses, neutrophils - activates the complement system. O…

A: The immune system's primary sources of histamine are mast cells and basophils. Along with other…

Q: -List the order of air flow through the respiratory tract. Include what specific bones and tissues…

A: The correct order of air flow through the respiratory tract is: nasal cavities (or oral cavity)…

Stress

Stress is defined as the feeling of being overwhelmed or unable to cope with emotional or mental pressure. Any event or action that makes a person annoyed, furious, or nervous can trigger it. Chemical changes in the body caused by stress can cause blood pressure, blood sugar levels, and heart rate to rise.