The only primates with prehensile tails are New World Monkeys. True or False

Q: A pregnant woman is carrying a triplet inside her womb. They want to determine the number of boys or...

A: Sex determination  Sex determination is the biological systems that determines the sex of an organis...

Q: 3. How could you find the relative age of a sedimentary rock? 4. How might pieces of an igneous rock...

A: Sedimentary rocks are formed over years and it appears in layers. The bottom most akter is the oldes...

Q: In imaginary (thank goodness) forced feeding experiments, some very unethical scientists determine t...

A:  LD50 or lethal dose 50 is the amount of a substance that is needed to kill half of the test populat...

Q: Can you consider a living thing that does not seem to interact with other living things as a compone...

A: Ecosystem It is defined as a geographical region where plants, animals, other species, weather, etc ...

Q: Describe what a core promoter in and the different types. Describe the motifs that could be found in...

A: Promoters are DNA sequence required to turn off gene or turn on gene.  Promoters are of three types-...

Q: explain the two major stages of photosynthesis (light dependent and independent reactions).

A: There are two major stages of photosynthesis, The light reaction  The dark reaction. The light rea...

Q: How will you differentiate VDRL from RPR Card test? 2. Give the composition of VDRL reagent and the...

A:

Q: Under anaerobic conditions, skeletal muscle cramps up and is unable to relax. Based on what you know...

A: Muscle movement or contraction-relaxation cycle of muscle happens based on the sliding of thin filam...

Q: Neuroglial cells:

A:

Q: Is it possible investigate natural paternity, maternity or brotherhood and sisterhood using ABO bloo...

A: Introduction With the use of ABO blood typing, it is only possible to rule out paternity, maternity,...

Q: Normal leg size, characteristic of Kerry-type cattle, is produced by homozygous genotype DD. Short-l...

A: So the phenotypic ratio will be 3/16 polled Kerry:1/16 horned Kerry:6/16 polled dexter:1/8 horned de...

Q: Orrorin tugenesis was bipedal because it left footprints that showed it had an arch to its foot like...

A: Bipedalism allowed hominids to entirely free their arms, allowing them to quickly produce and utilis...

Q: how does each of these factors influences the variation in the geographic distribution of species. ...

A:   INTRODUCTION    The individual species may isolate directly from each population ecology. Many spe...

Q: Mitosis differs from meiosis in that only mitosis: O is preceded by interphase involves two successi...

A: Introduction: Cell division is the means of reproduction in which all cells need to copy their chrom...

Q: Describe the function of these molecules that help control the cell cycle A.) M-phase promoting fact...

A: A) Maturation promoting factor is a cell cycle gatekeeper that controls a cell's transition from the...

Q: Discuss how immunoassays differ from precipitation and agglutination reactions. 2. Differentiate be...

A:

Q: Explain the 3 stages of cellular respiration. Why is ATP so important?

A: Each and every organisation is madeup of cells, the unit of life. The organism is unicellular or a m...

Q: (c) State the main function of the following: (i) Chordae tendinae (ii) Lymphocytes (iii) Seminifero...

A: Introduction  The heart is highly muscular in nature, is is composed of smooth cardiac muscles which...

Q: (a) Name the following : (i) The phenomenon by which living or dead plant cells absorb water by surf...

A: The cardiac muscle tissue contracts during systole that pumps the blood out of the chamber. The hear...

Q: 1. Using the food label shown, how many calories are in 1 s serving ? ( #fat g x 9cal/g) + ( #carb g...

A: The nutrient label shows you a few key supplements that help your wellbeing. You can utilize the lab...

Q: Increase in size and normal metabolic activities of the cell occur during O G1 phase O S phase G2 ph...

A: Introduction :- Metabolism is a delicate balancing act combining two opposing activities: building u...

Q: Match the following situations with how you would adjust the sweep speed to display them properly on...

A: Echocardiography (EKG) is also called heart ultrasound and it uses sound waves to take a dynamic mov...

Q: SPECIMEN   LEAF MODIFICATION SPECIALIZED FUNCTION   Allium cepa Leaf base: Leaf stalk: Shape of leav...

A: Allium cepa It is commonly known as an onion or bulb onion. It is a vegetable and is the most cultiv...

Q: If you were asked to choose one of the following invertebrate as a pet (protozoa, sponges, and placo...

A: Protozoans *protozoans are single celled eukaryotes that lives free living or parasitic means that t...

Q: TTiving with chronic illnesses: How are those with a chronic illness treated by their families since...

A: Research is a methodical investigation that includes data gathering, a compilation of key informatio...

Q: Question 7. What is the rate-limiting step in the formation of an actin microfilament?

A: The rate limiting step for actin filament polymerisation is nucleation, and two types of nucleator h...

Q: Please briefly explain the ATP_modulated actomyosih cycle.

A: Every myosin motor protein has ATPase activity and works in a periodic fashion, with ATP binding and...

Q: How does the immune process that causes hemolytic disease of the newborn take place?

A: Introduction In this question we will discuss about how does the immune process that causes hemolyti...

Q: Which of these characteristics is NOT shared by bacteria and archaea? O presence of plasma membrane ...

A: Sol: Bacteria and archaea are the prokaryotic microorganisms. They are prokaryotes because they lack...

Q: Pre-initiation complex (PIC) is formed right before the initiation of genes, which of the following ...

A: The preinitiation complex is a protein construct that forms in eukaryotic cells prior to transcripti...

Q: How many bacteria would be in 1ml of the sample if you counted 134 colonies on the 1:1,000 dilution?

A:

Q: 2. Describe these cell shape and arrangements

A: Bacteria are microscopic, unicellular, prokaryotic organisms. They do not have membrane bound cell o...

Q: n cattle, “short spine” is lethal shortly after birth; it is caused by the homozygous recessive geno...

A: There are few points that should be kept in mind: Each diploid has two alleles for a trait : Homozy...

Q: Protocols for analysing DNA

A: *DNA can be analysed through  Polymerase chain reaction Short tandem repeat analysis Y chromosome a...

Q: Name ONE automated cell counter and describe its working principles

A: Cell counters that count cells automatically are known as automated cell counters. The sample is fed...

Q: Which microorganism does not contain superoxide dismutase enzymes?

A:     Superoxide dismutase (SOD) is an enzyme found altogether in living cells. An enzyme could be a s...

Q: solve for the cfu/ml in a given of 300 colonies at plate 10^4. show complete solution. see attached ...

A: CFU or colony forming unit is the viable count of bacterial/fungal cells. In direct microscopic coun...

Q: What is/are the sensory structure/s present in jellyfish? What is/are it/they for

A:

Q: If you are using the 5 kingdom system, in which kingdom would you classify the halophiles and cyanob...

A: The kingdom comprising of the simplest unicellular, prokaryotic living organisms is known as Kingdom...

Q: Which of the following statements correctly compares/contrasts the ways in which antibiotics and ant...

A: The ways in which antibiotics and antibodies interact with the cells of pathogens that they can affe...

Q: need help with this questions just 2-3 sentences please. In the Ti-plasmid in Agrobacterium tumefaci...

A: Ti-plasmid in Agrobacterium tumefaciens contains a gene that encodes octopine synthase. This gene ca...

Q: vast majority of lorises are found in:

A: Loris is the common name for the strepsirrhine mammals of the subfamily Lorinae in the family Lorisi...

Q: A spotted rabbit, when mated with a solid-colored rabbit, produced all spotted offspring. When these...

A: Alleles are the alternative forms of the genes present on the same locus on homologous chromosomes ....

Q: Why is it important to determine the blood types of the donor and the recipient in transfusions?

A: Introduction In this question we will discuss why it is important to determine the blood types of th...

Q: The following media are used to grow bacteria for various purposes. Match the examples of media that...

A: MacConkey Agar: - Selective Growth Medium Malt Extract Agar:- Complex Medium  

Q: The placenta is formed from the embryo and the of the of the mother. O umbilical cord, oviduct O yol...

A: Reproduction is an important physiological process of all the living organisms. to increase their nu...

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

A: Answer--option c- 0.23  

Q: Describe the following stages of the cell cycle: interphase and mitosis

A: The longest phase of the cell cycle is interphase. Before entering into mitosis, the cell expands an...

Q: Briefly explain how each demographic parameter can affect a population. This can be in terms of popu...

A: Population is a reproductively interactive group of animals of a single species. A few individuals m...

Q: Explain and list down the protocols in doing or preparation of materials for polymerase chain reacti...

A: Polymerase chain reaction It is a technique that take specific sequence of DNA of small amount and ...

Primate evolution

Primates are a relatively new species and first appeared in the fossil record nearly 55 million years ago. They may have originated as far back as the cretaceous period. Their fossils were observed in North America, Asia, and Europe. Long before the first monkeys and their prosimian relatives developed, most animal species thrived and died. The first primates did not exist until about 50-55 million years ago, even though the planet is 4.54 billion years old and the first life goes back at least 3.5 billion years. Dinosaurs had been extinct for 10 to 15 million years when this happened.