Q: About _____% of the variance between physical activity levels in humans is due to genetic variation.…
A: Taking care of fitness immediately allows us to be productive and provides us stamina and…
Q: Which pair of amino acids is charged, polar, and has an amino group on its side chain? a)K, R b)N,…
A: Amino acids:- it is usually acts as building block of peptides and proteins. But, a lot of amino…
Q: Choose one prokaryote (bacteria or archaea) AND one protest. You can choose a species or more…
A: Name of bacteria chosen is Lactobacillus plantarum They are long rod shaped bacillus bacteria with…
Q: Which of the following subcellular structures facilitates intracellular transport? vesicles…
A: Intracellular transport, via membrane-bound carriers, is essential for proper functioning of a cell.…
Q: What does hydraulic conductance mean in the following?
A: Hydraulic limitation hypothesis is a mechanism which can explain the universal pattern in tree high…
Q: Choose one of the following scenarios. Describe the scenario. Describe the chain of events terms of…
A: Tonicity It is the capability of cell to loose of gain water of the cell. The movement of water…
Q: What evidences supported spontaneous generation? How was spontaneous generation disproved?
A: Introduction The scientific idea of spontaneous generation, which has since been disproved, claimed…
Q: SCH₂ H OH H OH W W and Z X and Z X and Y W and Y NH₂ W and X =0 I CH₂ H OH X H H H NH₂ CH₂ OH OH Y…
A: The S phase, which is also known as the synthesis phase, is the phase of the cell cycle that…
Q: Using a flow diagram, elaborate on how you would generate a recombinant plasmid that can be used for…
A: Introduction A plasmid is a distinct segment of extrachromosomal DNA that is physically distinct…
Q: Why do trees grow and stop at different heights
A: The tree height is defined as the length of the tree starting from its base to the tip of its…
Q: Who was Alfred Kinsey, and what are at least two contributions that he made
A: Alfred Kinsey was a biologist in America. He and his team study the sexual behaviours in humans. His…
Q: Draw two cells under high magnification in the space below and label the cell wall, nucleus and…
A: *Onion epidermal cells provides protective layer against viruses and fungi which may harm sensitive…
Q: You’ve been noticing that a local pond has developed a green scum that is getting thicker and…
A: Since it frequently causes the degradation of water quality and the reduction of dissolved oxygen in…
Q: Interpret the following chord diagram that shows the presence of species by month. Which of the…
A: The cord diagram helps us to compare the data between different groups. Here the cord diagram…
Q: How does bulk transport of molecules governed in a eukaryotic cell? by active transport by…
A: Bulk Transport Across Cell Membranes Bulk transport inwards as well as outwards occurs across the…
Q: The lysosome a) is a vesicle for food b) contains oxidase enzymes. c) adds carbohydrate chains to…
A:
Q: What would be the result of the following? the centromere is missing from a cell a chromosome…
A: Introduction A chromosome is a lengthy DNA molecule that contains all or a portion of an organism's…
Q: A high concentration of hydrogen ions results in a) an electrochemical gradient. b) thick mucus. c)…
A: Introduction Cell membrane act as barrier between the cell and outer environment by separating it…
Q: How does translation work? mRNA attaches to a The ribosome lines up complementary molecules. Their…
A: Protein synthesis is a process which occurs after transcription is completed. Transcription is a…
Q: Amylose Amylopectin
A: Introduction The most prevalent carbohydrates in food are called polysaccharides, or…
Q: What is the function of histone proteins? to package DNA in eukaryotic chromosomes to attach sister…
A: DNA is the genetic material in most of the organisms . The DNA with histone and non histones…
Q: What happens to cells that use up their available oxygen? they will no longer be able to…
A: Respiration is a catabolic biochemical process that involves the step wise complete or incomplete…
Q: What is Chorioallantoic Membrane?
A: Developmental biology studies how integrating systems produce an organism's diverse dimensions,…
Q: Use the graphs below to answer the following 5 questions. Biomass Time The growth of Lemna polyrhiza…
A: Intraspecific competition The competition between two same species is know as intraspecific…
Q: Prior to computerized tomographic scan (CT scan) of the abdomen, a patient is instructed to drink…
A: Introduction : Specific Gravity gives us idea about the weight and density of the object. It is a…
Q: Describe the fluid compartments (ICF, ECF, blood and interstitial fluid) Describe the distribution…
A:
Q: Fats can be dispersed into small droplets by: a. Emulsification b. Digestion c. Goblet cells d.…
A: Fats, along with carbohydrates and proteins, are one of the three major macronutrient groups in the…
Q: During stroke volume, the pressure in the ventricles forces AV and semi-lunar valves open True False…
A: Stroke volume the volume of blood pumped out of the left ventricle of the heart during each systolic…
Q: What is the difference between agar slant and agar special slant?
A: Since the discovery of germs, microbiology has now of considerable use to humans. It is utilised in…
Q: Describe the two events that are common to all sexually reproducing organisms and how they fit into…
A: Introduction: The union of male and female gametes leads to sexual reproduction. More viable…
Q: Energy and Enzymes If the following redox reaction occurred, which compounds would be oxidized?…
A: Just like animal cells, plant cells need oxygen and a way to get rid of carbon dioxide to continue…
Q: Based on the information in the following table, and the given phylogenetic tree, what kind of…
A: Classification It is the branch of biology that deals with the nomenclature, identification, and…
Q: The _____________ plants died, partially decomposed, and became the fossil fuels? (choose all that…
A: Sphagnum Moss: There are over 380 recognised species of mosses in the genus Sphagnum, which is also…
Q: Redraw and rearrange the branches of the tree below to make the most parsimonious (simplest) tree. A…
A:
Q: The genotype XXY corresponds to: a. Klinefelter syndrome b. Turner syndrome c. Triplo-X d. Jacob…
A: Introduction: Chromosome number abnormalities are the most readily apparent chromosomal disorders on…
Q: w
A: In NGS, GC-poor or GC-rich sequences, lead to an uneven coverage or even no coverage of reads across…
Q: 2. How does the size of blastomeres compare in size to the original fertilized egg?
A: Developmental biology seeks to study the process in which how different organisms grow and develop.
Q: From a soup sample, 1 mL of sample is taken and diluted in 99 mL of soup medium. culture, later,…
A: The volume of a single square of Petroff-hausser chamber = 0.02 cube mm = 2×10-5 cm3 1 centimeter…
Q: any species of animals make alarm calls, which warn others in their group that a predator is…
A: Producing an alarm call is a specialised animal behaviour which is intended for safety from the…
Q: Consider the following mature mRNA from a human cell: 5' UAAUGUCGCAAUAACC 3¹ What is the sequence of…
A: Gene is a hereditary unit which helps in transfer of genetic information. Genetic information is…
Q: One study predicted that trained subjects would have a resting metabolic rate 100-200 kcal/day…
A: The energy spent when a body performs basic functions which are required to stay alive is basal…
Q: This type of cell transport happens during secretion of hormones, neurotransmitters and digestive…
A: Introduction Cell transports are the movement of a material through the cell membrane. The chemical…
Q: The difference in charge and chemical concentration across a membrane is known as
A: Gradient across membrane:- it represents the movement of molecules or ions across the membrane. It…
Q: Humans homozygous for the sickle cell allele have sickle cell anemia. A human that is heterozygous…
A: Sickle cell anemia It is a genetic disease in which the shape of blood become sickle shaped and…
Q: a) Use this data, and sketch a graph by hand that would best fit the data. (think which type of…
A: Aurelia Aurelia commonly known as jellyfish because of its jelly like materials from which it is…
Q: Which one is a community level interaction? O Interspecific competition Intraspecific competition
A: The interaction between members is the same species for their all requirements of is called…
Q: Which type of protist shows characteristics that make it difficult to classify as either plant-like…
A: Answer : the type of process to shows characteristic that makes difficult to classify as either…
Q: Explain cell theory in three sentences.
A: Introduction : A cell is the basic structural and fundamental unit of life. Cells are the building…
Q: Wing Length for Ground Finches Observed in the Wet Seasons of 1973 and 1978 Wet 1973: all finches #…
A: The changes in finches beak size and wing length size are due to their adaptation in different…
Q: On your own understanding, explain the cell theory.
A: Introduction The basic and structural component of life is the cell. Cell biology is the study of…
Step by step
Solved in 2 steps
- What creates polyploid plants in the wild? A) Complete meiotic nondisjunction B) Complete mitotic nondisjunction in a stem of the plant C) Crossovers involving a chromosome with a large inversion D) colchicineWhen two plants belonging to the same genus but different species are crossed, the F1 hybrid is more viable and has more ornate flowers. Unfortunately, this hybrid is sterile and can only be propagated by vegetative cuttings. Explain the sterility of the hybrid and what would have to occur for the sterility of this hybrid to be reversed.At the molecular level (with regard to loss-of-function alleles), explain why the ttvv homozygote has an ovate seed capsule.
- What practical applications could be made with male sterile lines of maize?In considering the formation of the A–P and D–V axes inDrosophila, we noted that, for mutations such as bcd,homozygous mutant mothers uniformly produce mutant offspring with segmentation defects. This outcomeis always true regardless of whether the offspring themselves are bcd+/bcd or bcd/bcd. Some other maternaleffect lethal mutations are different, in that the mutantphenotype can be “rescued” by introducing a wild-typeallele of the gene from the father. In other words, forsuch rescuable maternal-effect lethals, mut+/mut animals are normal, whereas mut/mut animals have the mutant defect. Explain the difference between rescuableand nonrescuable maternal-effect lethal mutations.JA yeast proline, histidine auxotroph is mated with a prototroph and the diploid cell is sporulated. a.) Write out the cross that generated the diploid cell? b. ) List the types of tetrads and the genotypes of each spore in the tetrad that will occur if this diploid cell is sporulated.
- Draw a diagram of a cross between Dura and Pisifera. F1 and F2 and their genotypic and phenotypic ratios. draw the picture and the cross chessboard.In a particular plant species, 2n=12. For this organism, how many chromosomes, and how many DNA molecules will be present per cell for each of the following? e) root meristem cell in telophase of mitosis (cytokinesis complete) f) microspore mother cell (in anther) in prophase 1 of meiosis g) microspore mother cell in metaphase II of meiosis h) pollen grain ( after meiosis is and cytokinesis complete)You cross two yeast strains one is an ade auxotroph the other is a pro auxotroph and allow the diploid to sporulate. When you score each spore in the ascus you find the following proportions: 518 PD, 8 NPD, and 225 T. a.) What are the genotypes of each spore in all three types of the tetrads. b) Are these genes linked why or why not? c.) If these genes are unlinked what would you expect the progeny numbers and ratios to be? d.) What is the formula to determine the most accurate distance between these genes? If linked what is the map distance?
- Please solve this problem using the test cross branch diagram without a punnet square.Give one difference between a hybrid and a somatic hybrid.From a cross between e+ f+ g+ and e− f − g− strains ofNeurospora, recombination between these linkedgenes resulted in a few octads containing the followingordered set of spores:e+ f+ g+e+ f+ g+e+ f − g+e+ f − g+e− f − g−e− f − g−e− f − g−e− f − g−a. Where was recombination initiated?b. Did crossing-over occur between genes e and g?Explain.c. Why do you end up with 2 f+ : 6 f − but 4 e+: 4 e−and 4g+: 4g−?d. Could you characterize these unusual octads as MIor MII for any of the three genes involved?Explain.