Q: How does a phylogenetic tree relate to the passing of time? Some organisms that appear very closely...
A: Solution : A phylogenetic tree is a visual representation of the relationship between different orga...
Q: Subspecies
A: taxon is the one or many more of a group of population of an organism seen by taxonomist to form a...
Q: The niche is a property of a O a. species O b. community C. individual O d. environment
A: Ecology is a study of relationship in organism.
Q: What happens to the yeast telomeres over time if the telomerase RNA retains the same anchor but is a...
A: Telomeres These are specialized DNA caps that help in preventing the loss of genes as chromosome end...
Q: Coal miners inhale large quantities of fine coal dust when they are working in the mines. Over the y...
A: Introduction: Coal miners are at a very high risk of developing lung disorders such as pneumoconiose...
Q: the living cells of bone Osteocytes O osteoclasts
A: Bones are considered organs because they contain various types of tissue, such as blood, connective ...
Q: A bacterial operon is responsible for the production of the biosyntheticenzymes needed to make the h...
A: An operon is a group of genes that are all transcribed by the same promoter. Negative control means ...
Q: Which of the following changes in morphology or physiology are likely to happen as an organism gets ...
A: Answer :- Option (H) is correct. - All of the above. - The changes in morphology or physiology are l...
Q: The flowers of 4 o'clock plants may be red, pink or white. Reds crossed to whites only produced pink...
A: Introduction A chi-squared test, specifically Pearson's chi-squared test and variants thereof, is a ...
Q: Distiguish between 'exotoxin and endotoxin.
A: Endotoxins are less toxic compared to exotoxins.
Q: How do we detect relatedness among species?
A:
Q: In the Lotka-Volterra predator-prey model, the term for the rate of prey capture as a function of pr...
A: Functional response in predation The relationship between the per capita rate of consumption and the...
Q: Identify the type of graph that is most suitable to visualize results in each. 1. Number of reporte...
A: 1-Number of reported.... Bar graphs allow to easily sort bit sets of qualitative categories to make ...
Q: Vaccines and medicines demonstrate the scientific process of inquiry entailed in their development, ...
A: Vaccines are biological agents that stimulate an immune response to a specific antigen obtained from...
Q: What is the difference between multiple alleles and pleiotropy? A character that is influenced by tw...
A: Multiple alleles refer to the presence of more than two variant versions of a gene on the same locus...
Q: An analysis of an octopus’s DNA determines that the nitrogen base thymine makes up 18 percent of the...
A: Introduction DNA has four nitrogen bases - Adenine Guanine Thymine Cytosine Chargaff's rule ...
Q: not changed for this patient and explain your reasoning. 1. Inspiratory reserve volume 2. Expiratory...
A: There are lots of skeletal muscles involved in the breathing process. Breathing process involves inh...
Q: What are the various Agricultural or agronomic criteria used to classify crops?
A: Agronomic crops include cereals, corn, soybean, small grains, specialty crops such as malting barley...
Q: why anaphase I is important?
A: Anaphase1 is the third stage during meiosis 1 after the completion prophase1 and metaphase1 . Thi...
Q: TRUE OR FALSE? Do translatory conduction involves the entire length of the axon in the propagation o...
A: TRUE OR FALSE? Do translatory conduction involves the entire length of the axon in the propagation o...
Q: 17. Bob says that a sex-linked trait is when only men get the trait (or, when only women get the tra...
A:
Q: Glomeromycota help extract resources for plants to grow. The plant provides the Glomeromycota with c...
A: Introduction: Symbiosis :relationship between two different organisms living in close proximity, usu...
Q: An animal cell lacks a cell wall, yet it still maintains its shape and has all its internal componen...
A: Cell is chief elemental unit of the body which consists of various cellular components and allow met...
Q: ch of the following statements about the spleen is true or false. If you s false, explain why. atige...
A: Spleen is the part of the lymphatic system. Contain the white blood cells that helps in fighting of...
Q: (H and E STAINING) State the purpose of the following in staining: A. XYLENE 1 AND 2 B. Alcohol Abso...
A: The H and E stain stands for Hematoxylin and eosin. Thus stain is widely used in the preparation of ...
Q: Which statement is true regarding mitosis? 1.During prophase, the chromosomes become uncondensed and...
A: Introduction Mitosis is a part of cell division occurs in Eukaryotes . Here a single cell divided ...
Q: Describe the effect of the amino acid change on protein function: how does the HbS protein function ...
A: Proteins are the polymers of amino acids. These amino acids are linked together by peptide bond. Now...
Q: Fill in the cells below showing the process of meiosis of the male's sex chromosomes with non- disju...
A: Non-disjunction : During meiosis the homologous chromosomes pair up and undergo crossing over this s...
Q: Albinism is a condition where individuals can't make melanin pigment. The affected gene encodes for ...
A: Albinism is a group of inherited disorders which can lead to no production of melanin pigment due to...
Q: 25. Given the following mRNA codons and amino acids, construct a polypeptide from this DNA strand. D...
A: Transcription is a process in which the genetic information in the DNA is converted into RNA in the ...
Q: Create a descriptive introduction about compound microscope
A:
Q: Acetyl-CoA, the TCA Cycle, and the Electron Transport Chain
A: Acetyl-CoA (acetyl coenzyme A) is a molecule participates in some biochemical reactions in protein,...
Q: Match the following with A. First line of defense, B. second line of defense, C third line of defens...
A: INTRODUCTION In the human body there are three lines of defence it may fight against the...
Q: discuss how pre mRNA is formed in the nucleus and the RNA processing that happen to form a matured R...
A: When an RNA transcript is first made in a eukaryotic cellular, it's far taken into consideration a p...
Q: 120 20 Feeling 102 100 99% 104 80 0.2 95%. 106 60 0% 2x102 108 40 75% 2x10 1% 50% 10-10 20 5% 2x104 ...
A: Ear is the organ that enables hearing and, in mammals, body balance using the vestibular system.
Q: 17. glycogen is a form of ____________in ________ cells long term- energy storage, plant structura...
A: Glycogen is the multibranched polysaccharides consist of multiple glucose molecules liked together b...
Q: Which of the following correctly describes how positive and negative feedback are different? Negati...
A: A. Negative feedback reverses changes in a system, while positive feedback amplifies changes in a sy...
Q: Make up your own genetic problem involving your family. Make sure to draw a punnet square!
A: We will discuss monohybrid cross of tall and dwarf pea plants. Tall is dominant over short. So T rep...
Q: Which statement about the diagram is not correct??  A. All of these illustrations and photos repres...
A: Answer- B. Illustrations "B" are skeletal muscle which we know from the striations
Q: A gene contains the sequence CGCATACGGTAC that results in the amino acid sequence arg-ile-arg-tyr. A...
A: Point mutations can be defined as mutations in single nucleotides. In point mutation, a nucleotide m...
Q: omega-3 fatty acids?
A: Omega-3 are nutrients you get from food that help build and maintain a healthy body. They're key to...
Q: Which of the following statements is true? The Creeper gene in chicken follows Mendelian L...
A: Answer
Q: P generation АА ВВ aa bb Gamete formation Gamete formation Gametes (А В (a b) Fertilization F1 gener...
A: Recombinant DNA Technology that uses enzymes to cut and paste together DNA sequence of interest. ...
Q: Fill in the cells below showing the NORMAL process of meiosis of the male's sex chromosomes (XY – th...
A:
Q: The botanist crosses a homozygous dominant plant with a heterozygous plant in a follow-up experiment...
A: Genetics is a branch of biology concerned with the study of genes, genetic variation, and heredity i...
Q: How are animal hormones typically transported to target cells?
A: Animal hormones are the first messengers that exert their effect on the respective target cells. For...
Q: Match the enzymes provided from (1-4) in the list of choices with their matching function (A-D) duri...
A: DNA Polymerase- can only add nucleotides to an existing 3'oH group. Primase - actually us specialis...
Q: Which of the following incorrectly describes the difference between eukaryotic and prokaryotic gene ...
A: A) The promoter region of prokaryotes and eukaryotes are different. This region composed of bases wh...
Q: In peas, grey seed color (G) is dominant to green (g). The following data were collected. Indicate t...
A: a. Gg b. GG or Gg Explaination- a. When two grey seed colored parents are crossed, 59 grey and 20...
Q: 73. which of the following atoms or groups are not found in an amino acid? carboxyl groups (-COOH) ...
A: 73/ Option 3 i.e. NH2 group
What is the role of RhoA gene in the development of the Neural crest and neural connectivity?
Step by step
Solved in 2 steps
- What are the molecular mechanisms that can decide which neural crest cells come to express these signals at the correct time and in the correct form of presentation?How does the neural crest originate? What cells or tissues arise from it?What major adult organs develop from the neural tube and neural crest cells?
- During which trimester does the cerebrum develop convolutions? When do the limb buds begin to differentiate?What result would Jost have obtained if female development alsorequired a signal from the gonad?Describe the process of Neurulation, formation of neural crest & placodes, and the derivatives and importance of those.
- Make a TABLE (containing the summary) of the stages of emrbyonic development with each of the following: 1. Neural tube 2. Primary and secondary vesicles 3. VentriclesSubject [DEVELOPMENTAL BIOLOGY] Several genetic diseases and syndromes are associated with disturbances of the neural crest. ENUMERATE SOME OF THESE.What are the “traffic signs” in the environment that provide guidance cues for neural crest cells to colonize their target tissues?