Q: Define the three types of regulation involving RNA ?
A: Introduction: Gene regulation is the process of controlling the expression of genes by varying the l...
Q: Meiosis of cells in pollen sacs forms haploid______ . a. megaspores c. stamens b. microspores d. spo...
A: Meiosis is a cell division process that produces four gamete cells while halving the number of chrom...
Q: Which of the following is a problem with using the Biological Species Concept? A. it doesn't apply ...
A: Introduction A species taxon, according to the Biological Species Concept, is a group of creatures t...
Q: The redundancy of the genetic code means that some amino acids are specified by more than one codon....
A: A codon is the nucleotide triplet that encodes an amino acid. The three-letter nature of codons mean...
Q: Which of the following experimental techniques was used by Hershey and Chase to establish the geneti...
A: Answer : option 3) Isotope labelling is correct.
Q: The A locus and the D locus are so tightly linked that norecombination is ever observed between them...
A: Introduction Genes can be linked or autonomous. When they segregate during the time of formation, t...
Q: 1. A placenta vera is formed if a.The placenta is removed during birth. b. The maternal blood bathes...
A: Placenta is the physical contact between the fetus and mother inside the mother's body. Placenta is ...
Q: saccharomyces, hydra, and paramecium
A: Hydra is a genus of small, freshwater organisms of the phylum Cnidaria and class Hydrozoa. They are...
Q: The interplay of pathogens and antibiotics again brings up the problem of the Red Queen. How does th...
A: A pathogen is any organism that invades and proliferates within an organism's body causes infectious...
Q: 5. Describe the difference between how identical twins and fraternal twins (non-identical) produced ...
A: Introduction :- The term "twins" refers to two children born from the same pregnancy and delivery. M...
Q: You have a starter culture containing 8 x 109 cells per mL, from which you take 10 mL to inoculate a...
A: The generation time of culture is considered to be the time at which it doubles and the mean growth ...
Q: Describe an area in which linguistic inclusivity may become a relevant issue (e.g., race, sex, econo...
A: For a fifth of the world's population, inherited caste identification is a significant driver of lif...
Q: 1. Explain the natural and anthropogenic origin of the six criteria air pollutants and identify the ...
A: Air pollution is contamination of an environment by any agents such as physical, chemical, as well ...
Q: 1.: Male side-blotched lizards display throat color polymorphisms; some males have orange throats, s...
A: There are three allele in the population which are o,y and b. According to Hardy Weinberg equilibri...
Q: 3. From the ingredient lists below, circle the interfering agents used in each crystalline candy lis...
A: Candies can be categorized into crystalline and noncrystalline candies based on key interfering agen...
Q: Prompt With many issues regarding stem cell research with one of them being the utilization of embry...
A: INTRODUCTION Stem cell research The scientists grow stem cells in the lab and later the cells are ma...
Q: If a recessive mutation occurs in a male on an X chromosome versus a Y chromosome, leading to steril...
A: The males have two different sex chromosomes, X and Y. The females have only a single type of sex ch...
Q: what is sex and what are the steps of doing it ?
A: Sex is a type of response that comprises four distinct phases and these are: Excitement Plateau Org...
Q: Could it be that lineage-restricted multipotent stem cells are derived from acNeoblast and seeded th...
A: In cell biology, functionally and structurally limited cells to behave in a differentiated manner ar...
Q: Why it is essential to the positive stimulation of transcription of the lac operon ?
A: Lac operon includes the genes that code for the enzymes involved in lactose catabolism.
Q: The culture you are working has a doubling time of 2 hours and a cell density of 3 x 106 cells per m...
A: A serial dilution is a process of sequential dilution in order to decrease the density of cell cultu...
Q: Relate the structure of cilia and flagella to their functions.
A: Introduction: Microtubules are formed of tubulin proteins that make up the filamentous tubular struc...
Q: Starch and Cellulose. Which one can be hydrolyzed by you and most mammals? Why? Also, discuss the r...
A: Introduction :- Starch is a polysaccharide made up of 1,4 connections between glucose monomers. The ...
Q: . IQ scores predict school performance. T or F?
A: Intellectual capacity measured as intelligence quotient (IQ). It is one of the determinants of schoo...
Q: The following statements best describes the RNA structure EXCEPT some eukaryotic RNAS stay in the nu...
A: Answer : Option (C) is right. - protein synthesis cannot explain the structure of RNA.
Q: In Figure 4-14, in the bottom row four colors are labeledSCO. Why are they not all the same size (fr...
A: Crossover is the event of recombination that occurs during meiosis.
Q: Discuss and elaborate thoroughly the statement “oocyte activation involves inactivation” using speci...
A: In mammals, fertilization involves a series of consecutive steps that starts with the recognition an...
Q: How is it that only a few transcription factors can initiate cell type specific gene expression?
A: Transcription is the process of copying (transcription) a gene's DNA sequence into an RNA molecule. ...
Q: At the end of Meiosis I, ) two diploid cells are produced. O four diploid cells are produced. two ha...
A: Meiosis is reduction division. In this process, 4 different haploid daughter cells are produced from...
Q: 4X
A: G1 phase or the growth phase 1 is the first ghase of interphase of the eukaryotic cell division. In...
Q: Synaptonemal complex mediates of homologous chromosomes. Replication O Pairing Segregation Crossover...
A: The correct option is pairing In eukaryotes, the synaptonemal complex (SC) is a protein structure th...
Q: There are three termination codons (UAA, UAG, UGA) but usually only one initiation codon (AUG) is us...
A: A codon is a DNA or RNA trinucleotide sequence that codes for a certain amino acid. The genetic code...
Q: Describe shunting inhibition. What is the cellular mechanism, and how does it cause inhibitory effec...
A: Shunting is a neuronal event that happens when an excitatory postsynaptic potential and an inhibitor...
Q: Directions: Identify the citation style (Chicago Manual of Style, MLA, APA or ASA) used in the follo...
A: Citations are used to acknowledge persons whose creative and intellectual works you used to support ...
Q: In Drosophila, the dominant Bar mutation (B, chromosome X, position 57) results in thin bar- shaped ...
A: Bar mutation allele = XB (dominant) Wild allele for bar= Xb (recessive) Signed allele = Xsn (recessi...
Q: The A and B forms of DNA A are both right handed helices B) both have 10 base pairs per turn of the ...
A: A and B form of DNA : answer (A)are both right handed helices. (B)both have 10 base pairs per turn o...
Q: How did the bacteria maintain its homeostasis when homeostatic disturbance occur. Explain your answ...
A: The bacteria are classified according to the chemical nature of cell wall into Gram positive and Gra...
Q: What is the importance of detecting common ancestry?
A: Common ancestry is a term within evolutionary biology which refers to the common ancestry of a parti...
Q: Complete this Punnett square on a cross between two individuals who have normal s pigmentation (Aa):
A: Punnett Square employs a grid and letters. Capital letters denote dominant alleles, while lower case...
Q: How do the structure and function of rough ER differ from those of smooth ER?
A: The endoplasmic reticulum is membrane bound organelle consisting of delicate branching and anastomos...
Q: Which group of invertebrates is most closely related to vertebrates? A. molluscs B. anneli...
A: Mollusca This is the second largest animal phylum. Are terrestrial and aquatic having an organ syste...
Q: A new plant forms from a stem that broke off of the parent plant. This is an example of_____ . a. no...
A: Plants are the mainly photosynthetic, autotrophic eukaryotes of kingdom plantae. Plants are multicel...
Q: How do you think human body sustains life
A: For metabolic functioning, all life forms require certain essential chemical components. The element...
Q: Can the compound cause expression for each gene.
A: Since you have asked multiple question, we will solve the first question for you. If you want any sp...
Q: Diagram the genotype of a female fly that is recessive for apterus (ap, chromosome 2), heterozygous ...
A: Introduction: Morgan and his group found that when two genes in a dihybrid cross were situated on th...
Q: Each nucleotide on a DNA strand is made of a nitrogenous base (A, C, T or G), a phosphate, and what ...
A:
Q: The use of an adult population of pluripotent stem cells to fuel planarian regeneration presents sev...
A: Almost all metazoans have contractile cells, and the accompanying processes of muscle homeostasis an...
Q: Define the following terms as they apply to the genetic code:a. Reading frameb. Overlapping codec. N...
A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for y...
Q: What is your opinion/stance on biofuels as an alternative energy source?
A: In my view/opinion I consider Biofuel is best alternative energy source. But there are both pros and...
Q: hich if the following is not among Mendels principles? a. There are factors that is transmitted from...
A: Mendel's Principles: Four postulates are there : 1 Principle of paired factors 2 Principle of domin...
Step by step
Solved in 2 steps
- The maternal-effect mutation bicoid (bcd) is recessive. Inthe absence of the bicoid protein product, embryogenesis isnot completed. Consider a cross between a female heterozygousfor the bicoid mutation (bcd+/ bcd-) and a homozygousmale(bcd-/ bcd-). How is it possible for a male homozygous for the mutationto exist?Classes SBI3C1-2 rr x rr Meet - rz pQLSeUir31BTTSeUl8EYpVNYpajrmzBg_g0n6oMivineMfM4k0w/viewform rr x Rr Classwork O Rrx Rr ORR X Rr Genet X SBI3C1-2 Genetics Two parents were known to be right-handed. Assuming that right-handed (R) is dominant to left-handed (r), what would be the genotypes of the parents if their son is left-handed? Google M Post Atte Sp * 1 poir/d/1n5NtidRwTwUzcDkDPi5Z9P_SHPZ91A-XH-pfftLbhNc/edit (1) O pols Add-ons Help Last edit was seconds ago BIUA ミ: 12 + ext Calibri I|1 6 I 2 Section 5: Trihybrid cross and Laws of probability For a trihybrid cross, in which inheritance of alleles for three genes is tracked, drawing a Punnett square that combines all three genes may not be practical. Instead the laws of probability may be used. The product law of probabilities says that when alleles for separate genes segregate independently, we can figure out the probability of a particular combined genotype by multiplying the probability of the alleles for each gene. 13. We cross a homozygous tall pea plant with yellow, round seeds to a homozygous dwarf pea plant with green, wrinkled seeds. All the F1 offspring are all tall plants with yellow, round seeds. a. What are the expected F2 ratios (use fractions) of tall and dwarf plants? b. What are the expected F2 ratios (use fractions) of yellow and green seeds? C. What are the expected F2…
- The allele for color-blindness is carried on the X chromosome. Making color blindness (a recessive trait) an X - linked trait. A colorblind make and a carrier female for color blindness. (But is not colorblind herself) have a child. Show your work! A) what is the % chance that their son will be color blind? B) what is the % chance that their daughter will be color blind?X-linked ichthyosis is an X-linked recessive trait that manifests in part as dry, scaly skin (“ichthy-” = fish or fish like). Suppose a couple are considering having a child together. Parent A is heterozygous for the ichthyosis allele while Parent B is hemizygous negative for the ichthyosis allele. What is the probability their child would be unafflicted with ichthyosis but be a carrier of the ichthyosis-causing allele? a.0% b.25% c.50% d.75% e.100%A boy with Klinefelter syndrome (47,XXY) is born to a motherwho is phenotypically normal and a father who has the X-linkedskin condition called anhidrotic ectodermal dysplasia. The mother’sskin is completely normal with no signs of the skin abnormality.In contrast, her son has patches of normal skin and patchesof abnormal skin. Question: Which parent contributed the abnormal gamete?
- The maternal-effect mutation bicoid (bcd) is recessive. Inthe absence of the bicoid protein product, embryogenesis isnot completed. Consider a cross between a female heterozygousfor the bicoid mutation (bcd+/ bcd-) and a homozygousmale(bcd-/ bcd-). Predict the outcome (normal vs. failed embryogenesis) inthe F1 and F2 generations of the cross described.Chromosomes and Genetics Name 1. Edward and Jenna had 4 children together. They have a few "interesting" traits, shall we say! Look at the chromosome combinations that each child received and list their genotype and phenotype. Key: D= long eyelashes B = brown eyes F= freckles G = vampire teeth T= tall W = werewolf fur d = short eyelashes b = red eyes f= no freckles g = no vampire teeth t = short w = no werewolf furShown above is a family pedigree tree in which family members afflictedwith the disease Haemophilia are shown with filled-in squares (male) or circles (females). A couple is trying to determine the likelihood of passingon the disease to their future children (represented by the ? symbolabove) because the hemophilia runs in the woman’s family. Turner syndrome is a disease in which an individual is bornwith only a single X chromosome. Suppose the woman in thecouple is a carrier for hemophilia and has a child with Turnersyndrome. Would this child have the disease?
- Recessive hemophilia, x-linked. The man has it, and his wife is a carrier. Draw a Punnett square to show this. What is the probability that their daughter has hemophilia? What is the probability that their son does?X-linked Recessive Inheritance A gene is described as X-linked when it occurs on the X chromosome and not the Y. Our convention is to indicate X-linkage by attaching the appropriate gene symbol as a superscript on the letter X. Commonly, the wild-type (+) allele is indicated with only a "+" to avoid having to type a superscript on a superscript. For example, a female that is heterozygous and carrying a recessive mutant allele is indicated as X+Xm. Note the convenience of the shorthand + for m+ in this situation. A mutant male has the genotype XmY. When working with X-linked inheritance, always include the X and Y chromosomes in the descriptions of genotypes, and include the sex (male or female) in the descriptions of the phenotypes (e.g., mutant male, wild-type female, etc.). Here are the genotypes and associated phenotypes for X-linked recessive inheritance: X+X+ Wild-type female X+Xm Wild-type female xmxm Mutant female X+Y xmy Wild-type male Mutant maleUnaffected father Camier mother XY Unaffected Afected Carrier Unaffeded Unaffected daugkter U.S. National Lbrany of Mediche Carrier Affected son daughter son In humans, as well as in many other animals and some plants, the sex of the individual is determined by sex chromosomes. The sex chromosomes are one pair of non-homologous chromosomes: XX represents a female, while XY represents a male. When a gene for a specific trait is attached to the X or Y chromosome, we say it is sex-linked, and when it is attached to the X chromosome, we say it is X-linked. Alleles for these linked traits, such as hemophilia or color blindness, crosses, may be recessive or dominant. Hemophilia is an X-linked, recessive trait. The recessive allele for hemophilia is actually a mutated version of the normal alllele but it can still be passed on through generations. Imagine a female is a carrier for hemophilia; her genotype is Xx She is married to a man who does not have hemophilia. What conclusion is NOT valid…