Biology question and answers for November 23, 2023
- Q Short hair on a cat is considered DOMINANT (you can use any letter but be sure you capitalize it forthe dominant allele and use lower case for recessive allele).What genotypes...
- Q Which evidence best supports the claim that mutations are a source of inheritable genetic variation?(1 point)Mutations affect protein synthesis which impacts the way traits are expressed.Mutations can only happen during...
- Q In the LGBTQIA+ abbreviation, "I" stands for the the Intersex; pick and briefly explain another term from this abbreviation that deals with sex/gender identity (but not sexual orientation- it's the...
- Q Note: Blood type is controlled by 3 alleles of gene I: I^, P and i, Both alleles and I are dominant to allele I and are co-dominant to each othera)...
- Q 2. A male rabbit with the genotype GGbb is crossed with a female rabbit with the genotype ggBb. The square is set up below. Fill it out and determine the...
- Q A) During meiosis, sister chromatids may exchange sections of DNA leading to geneticdiversity. What is this process called? (1 point)independent assortmentkaryotypescrossing-overnondisjunction
- Q Gregor Mendel examined simple patterns of inheritance in his work with pea plants. Unlike pea plants, many human traits have complex patterns of inheritance. For example, some traits are controlled...
- Q What type of glycosidic linkages are broken by the enzyme glycogen phosphorylase during glycogen degradation?beta-1,6 linkagesalpha-1,4 linkagesalpha-1,6 linkagesbeta-1,4 linkages
- Q Flower color in snapdragons is controlled by incomplete dominance. Regarding the gene for flower color, there are two alleles CR and CW. Heterozygotes have pink flowers, whereas the two homozygotes...
- Q In cattle, an autosomal mutation called Dexter produces calves with short statureand short limbs. Embryos that are homozygous for the Dexter mutations haveseverely stunted development and either spontaneously abort or...
- Q Use the FOIL method to determine the genes for the gametes that would goon the outside of a punnett square in a dihybrid cross. Do this for one parent withthis...
- Q You are replicating Gregor Mendel's famous experiment with sweet peas. The genotype for dominant smooth-seeded parent is designated AA, while the genotype for the wrinkled-seeded parent is aa. Using a...
- Q What must be true for an XX female to express a recessive sex-linked trait?a X chromosome inactivationb a Y chromosomec two recessive alleles for the traitd two dominant alleles for...
- Q According to Mendel's law of segregation,a. when two different alleles occur together one allele is complete expressed the other is hidden.b. organisms donate only one copy of each gene in...
- Q You are interested in tracking inheritance of a suite of traits in the blue-footed booby (Sulanebouxii), a bird that is native to Pacific Coast of North, Central, and South America....
- Q Having two eyebrows is dominant (E) over having one large eyebrow (e). Also having sixfingers (F) is dominant over having five fingers (f). What is the probability of eachphenotype if...
- Q (6.5) In the parental (P) generation, two purebred pea plants having contrasting forms for flowercolor were cross-pollenated. After allowing the first filial (F?) generation pea plants to self-pollenate, 705 purple-flowering...
- Q In order to come to reliable conclusions about pillbug preferences, you needed to use theMultiple Choicemodular data method.experimental design method.hypothetical method.pretty graphs and charts.scientific method.
- Q A segment of DNA which provides the instructions for making a protein is called a(n):plasmidchromosomegenemRNAnone of the above
- Q (6.5) A fish farmer produces rainbow trout for stocking by private land owners and fishing clubs.His particular breed of trout occur in two different phenotypes; black and gold. The farmerknows...
- Q A group of scientists are studying the genome of the Drosophila Fly. In these flies, the allele for long wings is dominant over the allele for short wings. What phenotype...
- Q You are a clinical geneticist and have a patient that is phenotypically female and has some developmental delays and a history of a congenital heart defect. To begin your diagnosis,...
- Q For the mating below, indicate whether nondisjunction occurred in the mother, father, both or cannot be determined:XBA xba x xba y-> xba xba ya. Cannot be determinedb. FatherC. Bothd. Mother
- Q In pea plants Red (R) flower color is dominant over white (r) flower color and green seeds (G) are dominant over yellow seeds (g). (7)A farmer has a pea plant...
- Q Approximately where is gene a located along the chromosome?about one-third of the distance from the maroon-eye locus to the black-body locusabout two-thirds of the distance from the maroon-eye locus to...
- Q The most important factor determining the direction and strength of sexual selection is:Offspring sizeO Offspring relatednessInbreeding coefficientParental investment
- Q What protein usually helps RNA polymerase to bind to a promoter?a. Activator O b. Corepressor O c. Terminator O d. Repressor
- Q You perform a cross between two plants, one MmPp and one mmpp, and obtain offspring with the following phenotypes: 42 MP; 374 Mp; 367 mP; 27 mp. What can you...
- Q Fill in the space__ repeats are structural motifs found in many proteins, and they consist of a hairpin loop followed by a helix-turn-helix.
- Q Northern blot hybridization is based on:A. DNA and RNA.B. DNA and DNA.C. RNA and lipid.D. RNA and protein
- Q In cocker spaniels, solid color (A) is dominant over spotted (a), and black coat color (B)is dominant over red (b). If a solid red male was crossed with a solid...
- Q In Jimson weed, the allele for violet petals (A) is dominant over allele for white petals(a). The allele for prickly capsules (B) is dominant over the allele for smooth capsules(b)....
- Q In pea seeds, round (R) is dominant to wrinkled (r) and yellow (Y) is dominant to green (y). What percentage of round yellow seeds is expected from the cross: RrYY...
- Q The color of chickens is determined by gene B, such that BB- black, Bb = gray, and bb = white. A second gene R controls comb shape, with dominant rose...
- Q Sickle cell anemia (SCA) is an autosomal recessive disorder. Doug has SCA, but hiswife is homozygous dominant. What is the chance that their child will have sickle cellanemia?0%25%50%75%100%
- Q Tay Sachs is a lysosomal storage disease that is inherited in an autosomal recessive manner. Individuals with Tay Sachs have a defect in the gene encoding hexosaminidase A, a lysosomal...
- Q In a Punnett square where are the gametes listed?O In the boxes of the squareO Along the top and left side of the squareO On the bottom and right sides...
- Q If short hair (L) is dominant to long hair (1), then what fraction of the offspring produced by a cross of LI x II will be homozygous recessive? 1/21/4none of...
- Q In pea plants, the allele for tall (T) is dominant to the allele for short (t). The genotypefor a short pea plant isTt or ttTtttTT or tt
- Q If a parent has genotype "Aa", then through normal meiosis, he would producegametes withall gametes with only "A" allelesome gametes with "a" and some gametes with "A"all gametes with only...
- Q Familial intestinal polyposis results in multiple fingerlike growths (polyps) from thelining of the large intestine. Polyposis is inherited as a dominant trait (A). If bothparents are Aa and the couple...
- Q Mendel's laws derive fromprocesses unique to pea plants.mitosis.calculus and algebra.meiosis.
- Q In guinea pigs, black is dominant over white. A black guinea pig would beO homozygous recessiveO homozygous recessive or heterozygousO homozygous dominant or heterozygousO heterozygousO homozygous dominant
- Q In peas, the allele for tall plants is completely dominant over the allele for shortplants. The quickest way to determine whether a tall pea plant is homozygous orheterozygous is to...
- Q Tay-Sachs is an autosomal recessive disease, which causes deterioration of thenervous system and ultimately death in affected toddlers. Amniocentesis reveals thata fetus has Tay-Sachs disease. What are the genotypes of...
- Q In humans, red hair is recessive to dark hair. Dark-haired Sue is married to dark- haired Mike. Sue's father and Mike's mother have red hair. What is Sue's genotype?rreither RR...
- Q Which of the following genotypes is homozygous?RYYyRRRr
- Q In humans, brown eyes are dominant over blue eyes. A blue-eyed child has the genotypeBbBBbbeither Bb or BBimpossible to tell
- Q Albinism is an autosomal recessive trait. Is it possible for one albino parent and one pigmented parent to produce a normal-pigmented child? Yes Absolutely not No, unless there was a...
- Q Domestic dogs can have either dominant straight (S/-) or curly hair (s/s), which can be dominant black (B/-) or yellow (b/b) in colour. Two dogs with the following genotypes were...
- Q Which of the following are genetic disorders that affect human growth and development? Select all the correct options.a) Fetal Alcohol Syndromeb) Down's Syndromec) Fragile X Syndromed) Cystic Fibrosis
- Q By conducting the given experiment, teacher can conclude thatA.Genes for eye colour and body colour are linked.B.Genes for eye colour and body colour show complete linkage.C.Linked gene remain together and...
- Q What is known about the genetic components of autism? Select all that apply. Evidence of autism begins in the womb at 10-24 weeks of development. There are no genetic components....
- Q If the centromere on one of your chromosomes does not split properly at anaphase IIof meiosis, the consequence would be the production of four cells --two with 22 chromosomes and...
- Q Polyploidy can result whena haploid sperm fertilizes a diploid egg.one pair of homologous chromosomes does not separate during meiosis.a translocation occurs between two chromosomes.a developing gamete is haploid.
- Q An organism originally has a diploid number of 66 chromosomes. No meiosis occurs in this organism (gametes are diploid). Assume that the polyploid organism produced by union of the gametes...
- Q Which of the following is an incorrect statement concerning the codon?It is a small sequence of DNAIt is made up of three nucleotidesIt is the basic unit of the genetic...
- Q Which of the following is a possible reason that the cell makes RNA as an intermediate to protein synthesis?RNA contains the information needed for the synthesis of proteins, this information...
- Q Which of the following statements concerning DNA is false?Purines are larger structure than pyrimidines.Adenine and uracil are complementary bases.Adenine and guanine are purines.The number of cytosine molecule in DNA will...
- Q Rosalind Franklin's x-ray diffraction images taken in the 1950s most directly support which of the following claims about DNA? (A) The ratios of base pairs are constant.(B) The nucleotide sequence...
- Q Consider the following scenario. A farmer plants a huge grove of fig trees on their property. A large population of typical fig wasps (like the ones we discussed in class)...
- Q If light color is a dominant trait and the trees stay dark forever, could the light colored moths eventually become extinct? Why or why not?
- Q The bison herd on Konza Prairie has begun to show a genetic defect. Some of the males have acondition known as "rabbit hock" in which the knee of the back...
- Q If the pedigree below is for an autosomal recessive trait, what must be the genotypes of the parents in the P generation?A.) Aa x AaB.) aa x aaC.) Aa x...
- Q If heterozygotes display a phenotype intermediate to homozygous dominant and homozygous recessive individualsA. the 2 alleles are codominantB. the 2 alleles are epistatically regulatedC. the 2 alleles are incompletely dominantD....
- Q The following question is about the insulin-like growth factor 2 (Igf2) locus in mice.A homozygous dominant female is crossed with a homozygous recessive male. What would be the outcome of...
- Q Red color in tomatoes is dominant (autosomal gene) over yellow color. A farmer has a plant that produce red tomatoes. To determine the specific genotype of this red plant, the...
- Q What is the expected genotypic ratio resulting from a heterozygous x heterozygous monohybrid cross?a 1:2:1b 1:2c 1:0d 1:3:1
- Q Which of the following statements about gender development is not correct?A To be genetically male, one X chromosome and one Y chromosome are required.B. XY males will develop male sex...
- Q In analyzing the number of different BASES in a DNA sample (taken from a single organism), which of the following results--where each letter represents the quantity of that particular base--would...
- Q If you compare two alleles of the same gene,you will see all the possible variation in that geneone will cause disease and the other will notone of the copies will...
- Q 1. Set up a punnett square using the following information:Dominate allele for smooth petals = S (Capital S)Recessive allele for wrinkled petals =s (lowercase s)Dominate allele for purple flowers =...
- Q Case Study #1a. Robert has a widow's peak.b. Robert's father and paternal grandfather also have widow's peaks.c. Robert's mother and paternal grandmother do not have widow's peaks.d. Robert's maternal grandparents...
- Q Now try a different way of solving a dihybrid cross. Because of Mendel's (second) law of independent assortment, you can work with the blood type gene and the hemoglobin gene...
- Q In a species, there is gene with two alleles. The frequency of the recessive allele is 0.81. Assume that the population is in Hardy-Weinberg equilibrium.What is the frequency of heterozygotes?Enter...
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