Which human cell is haploid? O A mature neuron in the brain O A mature muscle cell in the heart A mature sperm cell O A cell in metaphase of mitosis O A cell in metaphase I of meiosis

Q: In growing E.coli, why is that (reasons) they do not grow after doubling time under 20 degrees celsi...

A: In a core typical range of its growth temperatures (20 to 37°C), Escherichia coli cells will grow ev...

Q: The tryptophan operon is a repressible operon that is   A. transcribed only when glucose is present...

A: The tryptophan operon is a repressible operon that is - B. not transcribed whenever tryptophan is pl...

Q: SCIENCE

A: Dactylography is study of fingerprint , use this is  important method of forensic science. Moisture ...

Q: 1. In your own understanding, why is the trophozoite form of Trichomonas vaginalis considered as the...

A: Trichomonas vaginalis is a protozoan which causes disease named trichomoniasis. It is considered as ...

Q: atelets platelet plug formation hemophilia megakaryocytes coagulation thromboxane A2 serotonin agula...

A: Hematopoietic cells or megakaryocytes, are essential for the generation of blood platelets. The clas...

Q: What type of selection occurs when one extreme population phenotype is favored? Group of answer choi...

A: Natural selection is the process through which individuals with various phenotypes survive and repro...

Q: Is this pedigree autosomal dominant, autosomal recessive, or X-linked recressive? Can you please lab...

A: Autosomal dominant and Autosomal recessive: The word autosomal refers to the "autosomes" which means...

Q: 7. In a certain animal, black fur is dominant to white fur. Determine the possible offspring from cr...

A: Answer: Dominant allele is able to express itself even in the presence of its recessive allele. Rece...

Q: Which is the best approximation of the fixation probability of the mutant B allele, present as one i...

A: ANSWER correct answer = 1/2000    

Q: At what phase of development would a mouse embryo appear me similar to a chick embryo? Blastula stag...

A: THE STAGE OF DEVELOPMENTIS BLASTULA STAGE.

Q: the example below, a segment of DNA is represented. Three possible PstI restriction sites exist. The...

A: Introduction Deoxyribonucleic acid (DNA) is a polymer made up of two polynucleotide chains that coil...

Q: Two bacterial species have generation times of 20 min and 18 hours respectively. From the below list...

A: Solution correct answer = Band D B. different species may have very different generation times D. st...

Q: Eukaryotes and prokaryotes have either DNA genome or RNA genome True False Golgi stack is the stack ...

A: Introduction: The cell is the structural and building block of life. All living organisms in this un...

Q: Use some connective words to complete the whole concept. Genetics Pea Dominance Allele Fruit fly Tho...

A: The given key words are from genetics and related concepts.

Q: For numbers 1-9. Cross the following blood type of the wife and husband and answer the questions pro...

A: ABO blood group of human is controlled by 3 multiple Alleles. IA, IB and Io. IA//IA or IA//Io determ...

Q: Match the terms with the most suitable description. ___ phylogeny              a. similar across man...

A: The answers are  matched and given below

Q: What do you think is the most important type of variation and why? (Choose only one - Morphological,...

A: Answer 

Q: Carrying capacity is defined as a species’ average population size in an environment. Which of the f...

A: Carrying capacity:Carrying capacity is the typical population size of a species in a given habitat. ...

Q: Phenotype is the allele combinations of an individual that cause traits or diseases. Genotype is the...

A: Introduction: Genetics is the branch of biological sciences which deals with the study of genes, gen...

Q: The figure below is called the

A: Muscle contraction occurs when myosin bind to actin filaments causing shortening of sarcomere. Maxim...

Q: ______ is a way of reconstructing evolutionary history based on derived characters. a. Cladistics c....

A: Cladistics is a way of reconstructing evolutionary history based on derived characters. Cladistics h...

Q: In pitcher plants, the leaves terminate with a pitcher-like structure. What special function does th...

A: Carnivorous plants Plants that can eat insects and/or small animals. They eat insects and other sma...

Q: ony forming units reticulocyte hemopoiesis hematopoietic stem cells erythropoiesis emopoiesis is the...

A: All cellular components of blood and blood plasma are produced during hematopoiesis. The hematopoiet...

Q: what is the nature and wildlife like in Georgia asia

A: Geopolitically, Georgia is part of the Caucasus region, Straddling the line between Eastern Europe a...

Q: Aortic valve closure AV valve opening Systolic pressure Isovolumetric relaxation Isovolumetric contr...

A: The stages involved in converting deoxygenated blood to oxygenated blood in the lungs and propelling...

Q: 6. Variations of the plaque assay can be used to determine the number of animal viruses from a sampl...

A: There are few points about Plaque assay : When treated with the lawn of susceptible cells , a bacte...

Q: Which of the following statements is INCORRECT? a. In simultaneous transcription of mRNA, many mess...

A: Transcription is the process of the formation of RNA from DNA where DNA is used as a template. The m...

Q: SPECIMEN     BASE TIP OUTLINE MARGIN VENATION  LEAF SURFACE Allium cepa .              Musa sp     ...

A: Venation It is defined as the process of the formation of veins on the leaf. The two types of venati...

Q: humerut B.1 Shown on right are images of the skeletal structure of the front limbs of 6 animals: hum...

A: Introduction: Bone is a rigid body living tissue consisting of cells embedded in an abundant hard in...

Q: How can current plant biotechnology tools aid in the improvement of crops for human health, and impr...

A:

Q: Identify two things that could limit the population of rabbits in a forest.

A: its populations have declined due to several factors including habitat transformation and viral dise...

Q: In corn, kernel color is governed by a dominant allele for white color (W) and by a recessive allele...

A: the Hardy-Weinberg equilibrium states that genetic variation in a population will remain constant fr...

Q: Illustrate the effect of temperatures 4, 15, and 25 °C on microbial spoilage of food. Assume that sp...

A: the higher the temperature, the more easily microorganisms can grow up to a certain point. Very high...

Q: . In your own words, what are the difference between: a. sexual and asexual stages of malaria b. rec...

A: Sexual stage Asexual stage Sexual stage is found in anopheles mosquito. Asexual stage is found in ...

Q: The quaternary structure is the highest level of architecture common to all biologically active prot...

A: Protein has four levels of structures.They are primary, secondary, tertiary and quaternary. Primary ...

Q: Scientists are examining the possible role of a large asteroid in the Cretaceous mass extinction eve...

A: ANSWER;- OPTION  C is correct ( after the asteroid strike).  

Q: How do Fibonacci numbers exist in art and architecture, animal anatomy, and human anatomy?

A: Human anatomy is the study of the human body's structures. An understanding of anatomy is essential ...

Q: The enzyme tryptophan synthetase is produced in two sizes, large and small. Some mutants with no enz...

A: Mutation is defined as the change in the sequence of nucleotides or the structure of chromosome wher...

Q: Question 3 What type of selection occurs when one extreme population phenotype is favored? stabilizi...

A: Natural selection is defined as a process or force that allows organisms to better survive and produ...

Q: describe 3 mechanisms that help generate antibody diversity in naïve B cells and create our naïve BC...

A: Immunoglobulins produced in response to antigenic stimulation are known as antibodies. They are eith...

Q: Why do multicellular eukaryotes need to have hundredsof kinase-encoding genes?

A: Gene expression in  eukaryotes are highly responsive to the outer environment.  The large eukaryotic...

Q: In the fungus Neurospora, some mutants were obtainedthat lacked activity for a certain enzyme. The m...

A: Neurospora It belongs to the Ascomycete fungus family. The genus name, "nerve spore," refers to the...

Q: Which of P. aeruginosa or B. subtilis do you think will be able to survive boiling for the longest t...

A: Spore is the outside coat of bacteria which can protect the bacteria in unfevourable conditions like...

Q: what practical importance are air borne microorganisms to the laboratory workers?  What precautions...

A: Laboratories are the areas where lot of experiments and research is performed. It deals with lot of ...

Q: Discuss the suitability of bromocresol green and thymol blue (2nd change only) for use as indicators...

A: The term acid-base indicator is associated with a dye that plays an important role in changing color...

Q: The advantages of trabecular bone are strength E O relatively flexible

A: Trabecular bone is a porous type of bone tissue  that is organised into a network of interconnecting...

Q: please choose statements/concepts that relate to SCIENCE that begins with letter X X letter should ...

A: As we know that science is the study of knowledge , technologies based on experiments. There are dif...

Q: What is a classification system? Give its broad definition as well as some historical background abo...

A: Biological classification is this scientific classification of living organisms based on their morph...

Q: Plant biologists are currently working to identify those Arabidopsis genes with unknown functions. I...

A: Introduction: Gene is a unit of heredity. It contains the genetic information. It is made up of DNA....

Q: Through the human introduction of invasive species and forced migration of various species such as p...

A: Introduction :- A null hypothesis is a statistical hypothesis that states that no difference exists ...

Oogenesis

The formation of the ovum (mature female gamete) from undifferentiated germ cells is called oogenesis. This process takes place in the ovaries (female gonads). Oogenesis consists of three stages known as the multiplication phase, growth phase, and maturation phase. 

Cell Division

Cell division involves the formation of new daughter cells from the parent cells. It is a part of the cell cycle that takes place in both prokaryotic and eukaryotic organisms. Cell division is required for three main reasons: