Q: During the second month of life, why might an infant smile in response to visual stimuli, including…
A: Introduction Development refers to the process of growth, change, and maturation that occurs over…
Q: a primary reason that enzymes are necessary to life is that a. the are portenin coded for in DNA…
A: Enzymes are high molecular weight proteinaceous biomolecules involved in almost all biochemical…
Q: The diagram describes a signaling pathway involved Protein Kinase A (PKA). Activated PKA…
A: Protein Kinase A: The family of enzymes known as protein kinase A (PKA) in cell biology depends on…
Q: PART FIVE-INCOMPLETE PENETRANCE 4. Write in the most likely genotype of everyone in the pedigree…
A: Penetrance and expressivity: In a group of individuals, many may carry the genotype for a…
Q: Other than increasing hormone solubility, describe two other consequences of hormones binding to…
A: Hormone binding proteins (HBP) are proteins that bind to hormones and modulate their availability…
Q: 3. Diagram the replication of a double-stranded DNA viral genome and the production of viral mRNA
A: Replication refers to the process of making an exact copy of genetic material, such as DNA or RNA.…
Q: 14) The figure above is reproduced from Cole & Curtis' 1940 measurement of an action potential in…
A: A resting axon's membrane potential is negatively charged. Voltage-gated ion channels open in…
Q: the concentraiton of partleces in a hyperosmotic solution is greater than in a hypoosmotic solution…
A: Introduction :- Hyperosmotic refers to a solution that has a higher concentration of solutes…
Q: Question 15 Which statement about chordates is ACCURATE? O Not all vertebrates have a distinct head.…
A: Chordates are a diverse group of animals that are defined by certain shared characteristics. These…
Q: Which statement is correct about the nuclear envelope? a) It is continuous with the membrane of the…
A: Introduction :- The nuclear envelope is a double membrane that surrounds the nucleus of a eukaryotic…
Q: What organelles are unique to plant cells? Discuss where each is found and their roles within the…
A: Introduction Organelles are specialized structures within a cell that perform specific functions…
Q: In the transduction pathway, protein kinase C (select all that apply): O Is activated by the second…
A: Introduction : Cell to cell signalling is the communication of information between cells.…
Q: Distinguish between morphology and arrangement
A: The science of tiny creatures' biology includes viruses, bacterium, algal, fungus, slime moulds, and…
Q: In the signal transduction pathway, protein kinase A (select all that apply): Converts CAMP back…
A: Introduction A signal transduction pathway is a complex network of molecular events that occurs…
Q: The parents have the following karyotypes illustrated by two pairs of chromosomes; then, what are…
A: When gametes are formed chromosomes and alleles present on them gets segregated. Gametes are haploid…
Q: Describe the step by step process of the light reactions
A: Light reaction converts energy from sun into chemical energy in form of NADPH and ATP. *The light…
Q: Cladogram Worksheet Convert the following data table into a venn diagram, and then into a cladogram:…
A: Diagrams termed cladograms show the links between several taxonomic groups known as "clades."…
Q: How was the enzyme that makes RNA within the cell found, initially discovered to have two…
A: Introduction Enzymes are biological molecules, typically proteins, that catalyze or speed up…
Q: You are studying the genetics of flower color in four different plant species. In each species, you…
A: This question involves studying the genetics of flower color in four different plant species. The…
Q: 1. You set up two cultures with an equal amounts of Escherichia coli. You label one culture "A" and…
A: Introduction:- Obligate anaerobes are microorganisms that cannot survive in the presence of oxygen.…
Q: Why are lethal dominant genes much more rare than lethal recessive genes?
A: Lethal genes when inherited by the organism causes the organism to perish. The lethality can be…
Q: Hydrogenases (H₂ases) were genetically attached to photosystem (PS)I to intercept electrons
A: BASED UPON IMAGE DESCRIPTION PHOTOSYNTHETIC ELECTRON TRANSPORT:- Based on the figure description…
Q: The amino (functional) group is made of nitrogen and hydrogen. True False
A: The term functional group is associated the countless atom combinations that make up chemical…
Q: How is the nucleus connected to golgi and rough ER?
A: Introduction: With the exception of bacteria and blue-green algae, most cells contain a nucleus, a…
Q: Which are used by researchers to dispute Piaget's claims that infants are not capable of mental…
A: Introduction The sensorimotor period is the first of four major stages of cognitive development…
Q: What is the importance of blood smear preparation in the diagnosis of bloodborne parasites?
A: Blood smear preparation is an essential technique in the diagnosis of bloodborne parasites. It…
Q: Aquatic Food Chains • make food ber themselves • primary producers (autotrophs) -almost 1/2 CO₂…
A: Introduction A food chain is a sequence of organisms in which each organism feeds on the organism…
Q: I am confused where the 0.002 came from, and how I could calculate the max volume media.
A: Cell culture is the process of growing cells in a controlled environment, typically in vitro (in a…
Q: Describe why it is difficult to demonstrate the importance of water to photosynthesis
A: Introduction : For both plants and animals to survive, photosynthesis is an essential metabolic…
Q: What exactly is the significance of the abbreviation DFR?
A: Introduction Enzymes are proteins that catalyze or speed up chemical reactions in living organisms.…
Q: Compare and contrast the morphology of the tissue sections of infant thymus and a lymph node.…
A: Introduction The thymus is a glandular organ located in the chest. It is an essential organ for the…
Q: erol has a hydrophilic OH group at one end and a hydrophobic region at the nd.
A: Introduction Cholesterol is a type of lipid, which is a class of biomolecules that are insoluble in…
Q: If a 500 bp of DNA between the two restriction sites were deleted, how would the banding pattern on…
A: 1) In molecular biology, a banding pattern refers to the distinct pattern of bands seen on an…
Q: In rho dependent transcription termination the rho factor binds to? You have a 18 ml sample of…
A: Introduction :- A zygote is the initial cell formed when two gamete cells (sperm and egg) fuse…
Q: Alpha helices and beta sheets are characteristic of protein primary structure secondary structure…
A: Introduction Proteins are macromolecules made up of chains of amino acids. They are involved in…
Q: Describe the basic process of aerobic cell respiration, what molecules are needed to begin the…
A: Introduction: Aerobic cell respiration is the process by which cells convert glucose and other…
Q: You have a mixture of 4 amino acids (Q, W, E, R, T) that you want to separate using ion exchange…
A: Introduction :- Amino acids are the building blocks of proteins. They are organic compounds…
Q: Lyme Disease and the effects on the human body
A: Introduction Diseases are medical conditions that cause abnormal changes or disturbances in the…
Q: 1. In which processes, anaerobic and aerobic respiration, is CO2 produced? What evidence do you have…
A: Introduction : All living things must respire in order to survive. The process by which the food…
Q: Where are the gametes and spores produced in a liverwort?
A: Introduction Gametes are specialized reproductive cells that are responsible for sexual…
Q: Which of the 4 Lineweaver-Burke plots above best corresponds to an example of competitive…
A: There are a few important points : Enzyme kinetics is the quantitative study of enzyme catalysis.…
Q: Seeds would be an example of an: I) autapomorphy II) plesiomorphy III)…
A: Genetic tree shows the evolutionary relationships between different groups. These relationships are…
Q: Based on your observation of microorganisms in their living state, which between the wet mount…
A: Introduction Microorganisms, also known as microbes, are tiny living organisms that are too small…
Q: The enzyme catalase found in vacuoles is used to convert hydrogen peroxide into water and oxygen.…
A: Introduction :- Catalase is an enzyme that catalyzes the decomposition of hydrogen peroxide (H2O2)…
Q: glycocalyx is a. is com,posed of proteins ;linked to the membrane lipids and carbohydrates b. is…
A: Introduction A cell is the basic structural and functional unit of all living organisms. It is the…
Q: Explain the theory of endosymbiosis. Do you think this theory is plausible? Why?
A: Eukaryotic cells are complex cells that contain a membrane-bound nucleus and other membrane-bound…
Q: Recall the power law equation Y = aXb. Which of the following statements is true? : a) a = 0.34…
A: Introduction :- Poikilothermic organisms are organisms that do not have a constant internal body…
Q: Which component is released from the active site of an enzyme during a chemical reaction? What is…
A: Introduction The active site of an enzyme is the region where the substrate binds and undergoes a…
Q: Researchers sought to grow blood vessels in a lab for implantation into patients with clogged…
A: Introduction :- Coronary arteries are blood vessels that supply oxygenated blood to the heart…
Q: A farmer is evaluating four methods of preventing farm runoff from reaching the nearby streams and…
A: Introduction Agricultural runoff can have negative impacts on nearby streams and rivers, causing…
Give detailed Solution with explanation needed (don't give Handwritten answer
Step by step
Solved in 3 steps
- In humans, the number of chromosomes per set is 23. Even thoughthe following conditions are lethal, what would be the total numberof chromosomes for an individual with each condition?A. Trisomy 22B. Monosomy 11C. TriploidyOn average, what proportion of the genome in the following pairs ofhumans would be exactly the same if no crossing over took place? (Forthe purposes of this question only, we will ignore the special case of theX and Y sex chromosomes and assume that all genes are located onnonsex chromosomes.)a. Father and childb. Mother and childc. Two full siblings (offspring that have the same two biological parents)d. Half siblings (offspring that have only one biological parent incommon)e. Uncle and niecef. Grandparent and grandchildIn an attempt to simplify meiosis for the benefit of students, mad scientists develop a way of preventing premeiotic S phase and making do with having just one division,including pairing, crossing over, and segregation. Wouldthis system work, and would the products of such a system differ from those of the present system?
- Consider the true diploid plant cell (2n=4) below. The paternally derived blue chromosomesare of two types, metacentric and acrocentric. These chromosomes contain the same gene pattern andstructural features as the maternally derived purple chromosomes. Consider two genes A and B whichare found on the metacentric and acrocentric chromosome pairs, respectively. Assume the father passedon A and B alleles, and the mother passed on a and b alleles. a. Show the possible loci of these genes (specify alleles) on the image. Label both sister chromatids in each chromosome. (Note: Sister chromatids are products of replication.)b. Draw the four possible gametes formed after meiosis assuming there was no crossing over. Label the gene loci.Which of the following statements accurately describes a differencebetween mitosis and meiosis?a. Mitosis may produce diploid cells, whereas meiosis produceshaploid cells.b. Homologous chromosomes synapse during meiosis but do notsynapse during mitosis.c. Crossing over commonly occurs during meiosis, but it does notcommonly occur during mitosis.d. All of the above are correct.e. Both a and c are correctMutations in DNA that result in altered proteins can causehereditary diseases. Pedigree studies and genetic testing mayclarify the risk of disease. At the chromosome level, nondisjunctionduring meiosis can result in gametes with too few or too manychromosomes, most of which produce inviable offspring.Imprinting refers to inactivation of alleles depending on whichparent the alleles come from; offspring in whom imprinting occursappear haploid for the affected gene even though they are diploid. During spermatogenesis, is there any difference in outcome between first- and second-division nondisjunction?
- occurs when homologous chromosomes or sister chromatids fail to separate during meiosis, possibly causing duplications, deletions, or a change in the # of chromosome sets. O a. Karyotype O b. Crossing over O c. Independent assortment O d. NondisjunctionWhich among the following statements is INCORRECT? O A. The arrangement of chromosomes in metaphase I and metaphase Il in Meiosis is not random, therefore, the inheritance of a trait will not affect the inheritance of the other trait O B. All statements are correct OCif a cross produces 100% heterozygous genotype, then all of the offspring will exhibit the dominant allele D.Only one of the two gene copies present in an organism is distributed to each gamete (egg cell / sperm cell) because of the separation of homologous chromosomes and sister chromatids during meiosis.a. The 2 daughter cells produced from meiosis I are IDENTICAL/UNIQUE (choose one) compared to each other. Explain how you determined the cells were genetically identical or unique. b. The daughter cells are HAPLOID / DIPLOID (choose one) because homologous pairs ARE/ARE NOT (choose one) present in the same cell. The chromosomes in each daughter cell are DUPLICATED/ UNDUPLICATED (choose one). essibility: Investigate D Focus 87% 58°F
- Assume an individual is of genotype FfGg, with the genes on different chromosomes. The principle of segregation suggests that this individual's gametes (resulting from meiosis) will contain: Select one: O a. Either Ff OR Gg. O b. Only FG and fg. O C. Either F or f, OR G or g, but not both. O d. For f AND G or gExplain the rationale behind a testcross. Is it necessary for one ofthe parents to be homozygous recessive for the genes of interest?In the heterozygous parent of a testcross, must all of the dominantalleles be linked on the same chromosome and all of the recessivealleles be linked on the homolog?in the experiment of following chromosomal dna mvement througgh meiosis, why. do you use non-sister chromatids to demobstrate crossing over? what combinatiobns of alleles could result from a crossover between BD and bd chromosomes? Identify two ways that meiosis contributes to genetic recombination. Why is it necessary to reduce the number of chromosomes in gametes, but not in other cell?