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 molecules are released from the dorsal blastopore lip in the blastula-stage embryo?     a.…

A:

Q: is the transmission of DNA to offspring. O a. Development b. Homeostasis c. Inheritance d.…

A: Reproduction is a way by which new generation is delivered by the inclusion of male and female sex…

Q: What type of molecule contains the site where amino acids link together to make a polypeptide? a.…

A: Translation is a process of protein synthesis from an mRNA sequence. It occurs in the ribosomal…

Q: DNA contains the hereditary code for:   A. Carbohydrate structures in the body B. protein…

A: DNA - genetic material/hereditary material. It is passed from parents to progeny.

Q: Which of the following statements about epigenetics is correct? 1. Twins have identical epigenetic…

A: Epigenetics is the study of heritable changes in gene expression that do not involve changes to the…

Q: In your primate anatomy lab, you are shown the mandible (lower jawbone) of a species of primate.…

A: Canine  It is the sharpe teeth present after incisiors. They are total 4in number.

Q: These genes are involved in normal cell growth and division, but if mutated, could become more…

A: Oncogenes are tumour-causing genes. They are mutated and abnormal that leading to uncontrolled cell…

Q: Which of the structures manufactures rRNA?

A: Introduction rRNA, also called ribosomal RNA is a non-coding RNA that forms the major part of the…

Q: The FOXP gene strongly affects what else, in addition to brain development? A. The stomach and…

A: Forkhead box protein P2 (FOXP or FOXP2) is a protein that is encoded by the FOXP2 gene in humans.…

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: | 14 Match the model organism species on the left with the type of organism on the right. Drosophila…

A: A species is frequently described as the largest group of organisms in which any two individuals of…

Q: How was stress helpful for us in our evolutionary past?    A. None of these are correct.…

A: The objective of the question is to understand the role of stress in our evolutionary past.

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: 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: Which of the following is NOT a genetically engineered animal? Lütfen birini seçin: O a. Sheep…

A: Most of the options given above are animals produced trans-genetically.  Transgenetic animals are…

Q: What is/are product(s) from commensal bacteria that regulate the expression for ler, regulator of…

A:

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: A cell in this stage of cancer no longer makes the set of proteins that is was originally instructed…

A: There are 3 pre cancerous stages -  1) hyperplasia  2) dysplasia  3) carcinoma in situ  Hyperplasia-…

Q: The parts of the limbs develop a. in a proximal-to-distal sequence. b. in a distal-to-proximal…

A: We know that The single-celled zygote, which is formed after the fusion of haploid male and female…

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: Xeroderma pigmentosuma. is a genetic disorder that results in uncontrolled cell growth.b. is a…

A: A disease is defined as an abnormal condition that affects the structure or function of an organism…

Q: Development of cancer is a multi-step process; a.How does information on the onset of cancer agree…

A: Development of cancer takes place by the growth of mass due to abnormal changes occurring in a cell.…

Q: A nerve cell and a skin cell from the same person  have Group of answer choices A. different gene…

A: When fertilization occurs, the two cells ie the egg cells and the sperm cells fuse to form a zygote.…

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: 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: The zona pellucida is important in mammals because it...

A: The zona pellucida is a thick extracellular layer that covers all mammalian eggs and preimplantation…

Q: The parts of the limbs developa. in a proximal-to-distal sequence.b. in a distal-to-proximal…

A: The single-celled zygote, which is formed after the fusion of haploid male and female gamete during…

Q: Muscle cells differ from bone cells because they_______ . a. carry different genes c. are eukaryotic…

A: All the cells of the body have all genes. It is the differential expression of genes which…

Q: All of the following are true about humans EXCEPT: A. our zygote and early embryo cells have…

A: Introduction :- A zygote is a eukaryotic cell created when two gametes fertilise each other. The…

Q: what is the key aspect of development? a. growth b. lifespan approach c. progess d. evolution

A: Development is defined as the process of becoming bigger, stronger, better, etc. Development play…

Q: oxytocin gene due to methylation. II. Mice with hypermethylation of the agouti gene became obese and…

A: Membrane fracturing, physical or pharmacological opening of the cervix, and oxytocin injection,…

Q: In which type of animal would sperm recognition proteins be most important. Group of answer choices…

A: Fertilization is the process in which the sperm cell gets fused with the egg cell and forms the…

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

A: ANSWER;- d) Cdx2

Q: Which of the following includes all of the others?a. homeotic genes c. SRY geneb. master regulators…

A: Homeotic gene involves a group of those genes that control the pattern of anatomic developments in…

Q: The body's ability to produce energy for muscle contraction during exercise by the breakdown of…

A: Glycogen is a storage form of glucose consisting of large, branched polymer of glucose residue.…

Q: Maple syrup urine disease is an autosomal recessive gene.  The R allele leads to a normal protein…

A: Maple syrup urine disease is autosomal recessive metabolic disorder that affect branched chain of…

Q: Which of the following is NOT true about mutations?   A. Mutations can be harmful but not…

A: Mutations are defined as any heritable change in the genetic makeup of an organism. It is a sudden…

Q: It is an example of natural mutation in cattle that enabled the creation of breeds such as…

A: A Mutation occurs when a DNA gene is damaged or changed in such a way as to alter the genetic…

Q: Give an EXAMPLE of each genetic term to tell the difference of the terminologies A. Monohybrid and…

A: Ans. A hybrid means the combination of two or more different things. Now, in genetics, the…

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: Which of these occurs as we get older?a. Neurons replicate to replace lost neurons.b. Skeletal…

A: Aging is considered as the progressive physiological changes in an organism that lead to senescence,…

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: Which of the following statements describing the mid-blastula transition is CORRECT? a. Cells…

A: Midblastula or midblastula transition (MBT) occurs during the blastula stage of embryonic…