Which of the following is an important model organism for studying development? a. E.coli O b. D. melanogaster c. S. cerevisiae O d. C. elegans e. Both b. and d.

Q: Which of the following genes would you expect to contain a signal peptide sequence? Select all that…

A: Answer - a. SRP b. SR receptor c.a memberane protein

Q: If a scientist discovers a new monkey in Paraguay, its genome will probably be MOST similar to that…

A: The group of eukaryotic, multicellular, and heterotrophic organisms is classified under the kingdom…

Q: In animals, Hox genes activate proteins to determine A. animal cephalic region O B. animal…

A: HOX genes are groups of regulatory genes which encode for the transcription factors and are…

Q: Organize the four craniums based on prognathism (reduced to increased prognathism). A. Homo…

A: When compared to the upper face and cranial features, prognathism is the amount to which the lower…

Q: The experiment in which a second Zone of Polarizing Activity (ZPA) was transplanted to the anterior…

A: ZPA is a specialized zone or mesenchyme at the posterior part of the limb bud.

Q: The results of the treatment of 20 boys with SCID-X1 showed that ____. a. the “treatment”…

A: Severe Combined Immunodeficiency (SCID) is a collection of uncommon genetic illnesses that impair…

Q: which of the following a correct development sequence a. Neural plate, proliferation, neural…

A: The neural plate is a crucial developmental component that acts as the nervous system's foundation.…

Q: the main characteristics of genetically encoded calcium indicators: (can be more then one answer)…

A: Main characteristics of Genetically encoded calcium indicators (GECI) are-

Q: Answer the following questions based on Yokohama et al. (2018)'s article entitled, "Skin…

A: As per our policy, We are answering only question 1. For the rest of the questions please repost. We…

Q: The skeletons of early fossil Homo and archaic Homo sapiens are marked by very ____ skeletons; this…

A: The cerebral cortex is the part of the brain that consists of the gray matter. The cerebral cortex…

Q: Which of the following is not true about prolactin in female rats? O a. It helps trigger the…

A: The reproductive cycle in females of mammals can be of two types: The estrous cycle and the…

Q: Which statement is true of Spemann’s organizer?a. It is unique to amphibian embryos.b. It arises…

A: Answer is a.)  it is unique to amphibian embryos.

Q: he mammalian ____________ evolved 520 mya and the _________ developed 200 mya.     a. midbrain,…

A: The theory of evolution explains the history of life on Earth and how biological populations have…

Q: If all animals with a circulatory system have a "pump", then what can we say about the genes that…

A: If all the animals with a circulatory system have "pump"then we can say about the genes that codes…

Q: Premature babies born before the 26th week of gestation develop physiological problems because…

A: Fetal development within the womb is called prenatal development. It is a process that occurs in…

Q: Which gene is incorrectly matched to its function?a. Hox—body shapeb. Pax6—body segmentationc.…

A: Hox genes are involved in laying out  a basic body plan. Pax6 gene is involved in the formation of…

Q: 1. Reports about a man who successfully undergone xenotransplantation of a pig heart in replacement…

A: Introduction :- Transplantation is method or process by which the cells , tissues , organs are…

Q: A scientist is curious about the effects of diet on the gut length of spadefoot toad tadpoles.  She…

A: Tadpole  It is a stage in the life cycle og amphibians. Most of the tadpole live in the water and…

Q: cancems should be considered before moving forward with genetically engineering the hum O the…

A: Genetically modified organisms are those which contain a foreign gene.

Q: Over many generations, humans inherited thumbs to help us grasp onto objects. This trait that…

A: Evolution is the basis for development of complex features from simple features .

Q: The dental pattern of Old World higher primates is A. 2/1/2/3 B. 2/2/2/3 C. 2/1/3/3 D. 2/2/3/3

A: Introduction :- The combination of different codes used to identify various tooth states, such as…

Q: A colleague has given you a population of avian neural crest cells to use in an in vitro culture…

A: Within the neural tube, multipotent stem cells give rise to neural crest cells. Presumptive…

Q: Which of the following is NOT correct about recombinant human insulin? Lütfen birini seçin: O a.…

A: Insulin is a peptide hormone produced in pancreas by the beta cells of Islets Langerhans  in the…

Q: There are several hypotheses that explain why we age. Name one of these, and explain how it is…

A: Gerontology, the study of aging, could be a comparatively new science that has created unbelievable…

Q: The formation of the neural plate is induced by the ….? Group of answer choices a. notochord b.…

A: The neural plate that has formed as a thickened plate from the ectoderm, which is induced by the…

Q: In experiments in which rat embryo fibroblasts are transfected with suspected oncogenes,…

A: Myc gene basically a proto-oncogene that play a key role in cell cycle progression, cellular…

Q: The process that causes embryonic cells to produce signals that alter the behavior of neighboring…

A: From the early stage of embryo development, the embryonic cells are organized in such a manner that…

Q: Using the following list, describe the proper sequence for the events of animal development: 1.…

A: Animal development is occurs in sequential manner.

Q: In early mammalian development, compaction would likely be blocked by inhibiting expression of which…

A: ANSWER;- d) Cdx2

Q: The function of the structure labeled in the above image

A: The given image is of Star-Fish(Asterias) of phylum Echinodermata. In this phylum, the digestive…

Q: Which is the largest portion of an insect egg that contains carbohydrates, proteins and lipids? A.…

A: "Sexual reproduction refers to the form of reproduction that occurs through the union of male and…

Q: Match the following protein pair with whther they are orthologues, paralogues or neither.…

A: Homologous genes are those gene that share a common evolutionary ancestor. A pair of homologous…

Q: In mammals, the relationship between brain size and body mass can be described by the equation brain…

A: Introduction :- Mammals are a diverse class of vertebrates that are characterized by certain…

Q: Which of the following statements about the differential expression of human genes is correct? A.…

A: The Human Genome Project states that genes in human vary greatly in size, ranging from a hundred DNA…

Q: Which of the following statements about Au. afarensis anatomy is most accurate? O a. Au. afarensis…

A: Australipithecus afarensis (Au. afarensis is an extinct species of australopithecine. These species…

Q: In an experiment described in lecture, a portion of tissue containing ZPA was transported to the…

A: Option A

Q: scientist is studying a human disorder that may be attributable to a mutation in the mitochondrial…

A: According to Mendelian inheritance, alleles from both male and female side combines and determines…

Q: When comparing gene expression of the cells of the ICM and those of the trophoblast, which of the…

A: The mammalian embryo begins life as a single-cell creature after syngamy of pronuclei of the egg and…

Q: Homeotic genes aid in development of D. melanogaster by giving a specific identity to each segment.…

A: Insects are the invertebrate organisms which are the largest group in the arthropoda phylum. The…

Q: At which of the following stages of development is a frog embryo composed of the most cells? Group…

A: The different stages of development in a frog are: Zygote→Morula→Blastula→Gastrulation begins→Embryo

Q: Which of the following is correct regarding the reptilian and mammalian vertebra? A. Their cervical…

A: Mammals: Mammary glands, which produce milk for nourishing (nursing) their young in females, a…

Q: An example of inappropriate expression of a protein and what could be learned from this type of…

A: Inappropriate expression means hindered or obstructed expression of the protein.   A) It would not…