Question Discuss (i) haploid insects and lower plants where cell-division occurs, and (ii) some haploid cells in higher plants where cell-division does not occur.
Q: 16. Tamaraw has been in the critically endangered list since the year 2000. One of the reasons is…
A: Introduction A species is often defined as a group of animals, plants, or other living things that…
Q: Sudden increase in the number of-13 floaters is always benign .A true .B false
A: Floaters are the spots in the eye. They appear black, greyish from the vision of the person. These…
Q: . While hiking your find a wild growing pea plant with purple flowers. You know that purple pea…
A: Punnet square is used to predict the genotype of the offspring when two plants are crossed with each…
Q: Which of these are known to host chemosynthetic communities? a) Hydrothermal vent O b) Hydrocarbon…
A: The food chain in our ecosystem depends on the primary producers as they are capable of harvesting…
Q: 1/How can an inhibitor affect enzyme activity in a cell? 2/Outline glycolysis in terms of…
A: 1) Enzyme inhibitors are substances that modify the catalytic motion of the enzyme and therefore…
Q: What are porins? What role do they play in diffusion?
A: Introduction in this question we will porins
Q: Draw a simple sketch illustrating the way in which aerobic bacteria are hypothesized to have become…
A: The origins of multicellularity and its complexities are still being debated in evolutionary…
Q: How many links long are MOST food chains? O 2 links or fewer O 5 links or fewer 8 links for fewer O…
A: Food chain It is the linear representation of links of food starting from producer.
Q: Hermione's parents are muggles (cannot perform magic). How is it possible for Hermione to do magic?…
A: Wizards: ww muggles: Ww, WW Strong: MM (silencing gene) Strong magician: MM Moderate or normal…
Q: Flowering plants and mammals diversified and became dominant during the (a) Paleozoic era (b)…
A: Flowering plants are the angiosperms that produce flowers as organs of sexual reproduction.
Q: Name and describe the four different categories of lipids including their structures and functions;…
A: Lipids are very essential compound for verious organism. Lipids plays great role in formation of…
Q: What is meant by “polarity” of a polypeptide chain and by “polarity” of a chemical bond? How do the…
A: Anything which has distinct two or more ends is said to be polar. Amino acids have an alpha carboxyl…
Q: State the volume of air remaining in the lungs after a normal breathing.
A: Introduction In this question we have to state the volume of air remaining in the lungs after a…
Q: Several set of terms are used to indicate the direction and position when describing the relative…
A: Anatomical directional terms are the terms used to evaluate the particular positioning , location ,…
Q: An organism's life history traits influence its... O Diet O Reproduction O Survival Reproduction and…
A: Life-history traits include the traits or characteristics like size, growth rate or age.
Q: Compare and contrast the three main types of exploitativespecies interactions. How do predation,…
A: The population of different species present in a community interacts with each other and with…
Q: brown-eyed sheep is crossed with a homozygous green-eyed sheep, blue-eyed offspring are produced. If…
A: DISCLAIMER As per the guidelines, as you have asked multiple questions, we will solve the first…
Q: Give the different classes of each phylum. 1. Phylum Cnidaria 2. Phylum Mollusca
A: Phylum is a level of classification of organism or taxonomic organization which ranks below…
Q: Are there any H3O+ ions present in pure water at neutral pH (i.e., at pH = 7.0)? If so, how are they…
A: Pure water is also referred as either the distilled water or deionized water. In the distilled…
Q: What causes the opening and closing of guard cells of stomata during transpiration?
A: Introduction In this question we will discuss about the opening and closing of guard cells of…
Q: Did your recombinant DNA have more than one insert? What was the orientation of the insert(s)? Make…
A: *Recombinant DNA technology is to transfer genes from one organism to another or changing genes by…
Q: What, if any, are the advantages in being multicellular?
A: Multicellular organisms are those which has more than one cells in their body. Animals, trees and…
Q: There was a fish kill because of the higher temperature below the water. * density-dependent…
A: The temperature is defined as the degree of hotness or coldness of a particular body.
Q: What is meant by double circulation? What is its significance?
A: Double circulation is a process in which blood circulates twice through the heart in the course of a…
Q: what pH, acids, and bases are, and describe the pH scale; discuss what each pH number means and…
A: In 1909 Sorensen defined pH as a negative logarithm of [H+].
Q: What are the factors affecting the rate of diffusion?
A: Diffusion is the process by which particles move from an area of high concentration to an area of…
Q: Explain and distinguish between a hypothesis and a scientific theory as well as distinguish between…
A: There are several aspects in the scientific research where different wordings are used to be…
Q: What is the correct order of appearance in the fossil record, starting with the earliest: flowering…
A: Fossils are the remains of living organisms that was found after the organism was buried properly.…
Q: Please explain 3 potential complication the use of stent-grafts for the treatmen abdominal aortic…
A: In old age men and smokers, this abdominal aortic aneurysms are most commonly seen. An enlargement…
Q: 27. In peas the trait for tall plants is dominant (T) and the trait for short plants is recessive…
A: There are two genes T and Y which encode height of plant and seed's color respectively. (As per our…
Q: T cells and B cells have many similarities in how they produce their highly diverse repertoire of…
A: Somatic hypermutation (or SHM) is a biological mechanism by which the immune system adapts to new…
Q: What is the adaptive value of a fixed action pattern in animal behavior?
A: Innate behavior is behavior that is genetically programmed into an organism's DNA and can be…
Q: Explain the process of inspiration under normal conditions
A: Introduction Inspiration is the process of bringing air from outside the body into the lungs. it…
Q: What role does root pressure play in water movement in plants?
A: It is the positive pressure that develops in the roots of plants as a result of the active…
Q: For most dividing cells in a diploid organism, the time spent in mitosis is approximately 4% of the…
A: A cell cycle is the series of cyclic events that takes place in a cell for its division. There are…
Q: -Photopsia is black dots 14 .A true .B false .C .D
A: Introduction Photopsia's are sometimes referred to as eye floaters or flashes, it is the presence of…
Q: 7. Which of the following base sequences are probably not recognition sites for cleavage by…
A: Restriction endonucleases are the molecular cutters which is used to split DNA in the center but…
Q: We have seen that animals often encounter problems in dealingwith waste nitrogen. Considering…
A: The enzymes deaminase and transaminases catalyze the reactions including the transfer of nitrogen.
Q: Production of any sort of nitrogenous waste other than ammoniacosts energy. Name at least three…
A: Ammonia, uric acid, and urea are nitrogenous waste products.
Q: Briefly explain the structure and some functions of DNA, RNA, and a close relative, adenosine…
A: Microbiology is the study of both disease-causing and beneficial microbes, including their cell…
Q: Which of the following describes features of adherens junctions that allow them to function…
A: Cell-cell adhesion is initiated by adherens junctions, which also mediate the creation and…
Q: 26. In sheep, eye color is controlled by a single gene with two alleles. When a homozygous…
A: as per our company guidelines we are supposed to answer only first 3 sub-parts. Kindly repost other…
Q: How does the iron–sulfur world hypothesis differ from the prebiotic soup hypothesis? What do these…
A: The creation of heritable and upgradeable self-reproduction is the origin of life. The "Origin of…
Q: Explain why there are no tree-sized bryophytes.
A: Plants on land are divided into two types: vascular plants and non-vascular plants (also called as…
Q: 6. The Philippines is one of the most severely deforested countries in the tropics and most…
A: ANSWER) (D) Habitat Destruction Deforestation is the large scale cutting of trees.
Q: Why is the colour of a leaf kept in the dark frequently yellow, or pale green? Which pigment do you…
A: Introduction In this question we will discuss why the colour of a leaf is kept in dark frequently…
Q: Briefly describe the distinguishing organisms and major biological events of the Ediacaran period…
A: Molecular systematics assists biologists in interpreting the fossil record in order to determine the…
Q: Underline the error in each of the following statements and provide the correction. ii. Smooth…
A: Introduction Smooth muscles are involuntary muscles i.e. these muscles are not under conscious…
Q: ) A) List 15 drugs (monoclonal antibodies can be used) used clinically to treat cancer in humans.…
A: Monoclonal antibody-based immunotherapy is now considered to be the main component of cancer…
Step by step
Solved in 2 steps
- Haploid insect and lower plant where cell- division occurs?Discuss with your teacher about(i) haploid insects and lower plants where cell-division occurs, and(ii) some haploid cells in higher plants where cell-division does not occur.Q.No.1. A pollen of maize with nuclei labeled P, Q and R fertilized an embryo sac with nuclei labeled S, T, U, V, W, X, Y and Z as shown here. X V Y Synergids W P Tube nucleus Antipodals Which of the nuclei in the pollen grain would contain genetically identical sets of chromosomes? Which of the nuclei in the embryo sac would be chromosomally and genetically equivalent? Which of the nuclei in these two gametophytes will have no descendents in the mature seed?
- Plasmogamy is the fusion of(a) two haploid cells including their nuclei.(b) two haploid cells without nuclear fusion.(c) sperm and egg.(d) sperm and two polar nuclei. Please try to break the solutions into as many steps as practically possible and the steps should come one by one and they should be short and crisp and plagiarism-free.A pollen of maize with nuclei labeled P, Q and R fertilized an embryo sac with nuclei labeled S, T, U, V, W, X, Y and Z as shown here. R V Y Synergids U W P Tube nucleus Antipodals Which of the following combinations could be found in the embryo? i) PQR, ii) QRY, iii) VWQ, iv) RY Which of the above combinations could be found in the aleurone layer of the seed? Which of the above combinations could be found in the germinating pollen tube?In a life cycle with alternation of generations, multicellularhaploid forms alternate with(A) unicellular haploid forms.(B) unicellular diploid forms.(C) multicellular haploid forms.(D) multicellular diploid forms.
- In embryophytes, especially spermatophya, what is the difference between a "sporocyte" (e.g., megasporocyte) and the actual spore (e.g., megaspore)? a) Meiosis: Megasporocyte is still diploid, megaspore haploid b) Mitosis, number of nuclei: Megaspore has eight cell nuclei, megasporocyte only one c) Cytokinesis: Megasporocyte has only one cell, Megaspore can have several (as endosporic gametophyte). d) None: the two terms are synonymous. e) Meiosis: Megaspore is still diploid, megasporocyte haploidDoes structure "A" produce haploid or diploid spores? Is structure "B" coenocytic or septate? A MacBook ProPlease ASAP Consider a diploid species with a deploid number 2. Show your work and explain your part. A. If a typical haploid gemete from this species contains DNA with a mass of 36 picograms of DNA would be in a typical somatic cell in G1 of the cell cycle?
- please answer, do not copy from google please What is the shape of the ascus? The ascospores inside the asci are produced by meiosis. Are ascospores haploid or diploid? Interspersed among the asci are sterilefilaments, the paraphyses. Deduce the function of paraphyses. The ascospores are released from the asci and undergo mitotic division upon germination. Are the individuals germinating from ascospores haploid or diploid?In the green algae studied, where in the life cycles does the chromosome number change from haploid to diploid, and vice versa?Somatic cells of chimpanzees contain 48 chromosomes.How many chromatids and chromosomes are present at: (a) anaphase of mitosis, (b) anaphase I ofmeiosis, (c) anaphase II of meiosis, (d) G1 priorto mitosis, (e) G2 prior to mitosis, (f) G1 prior tomeiosis I, and (g) prophase of meiosis I?How many chromatids or chromosomes are presentin: (h) an oogonial cell prior to S phase, (i) a spermatid, (j) a primary oocyte arrested prior to ovulation,(k) a secondary oocyte arrested prior to fertilization,(l) a second polar body, and (m) a chimpanzee sperm?