Description : .Match the terms in column I with their description in column II and choose the correct option. Column I Column II A. Dominance (i) Many genes govern a single character B. Co-dominance (ii) In a heterozygous organism only one allele ... (i) (ii) (c) (ii) (i) (iv) (iii) (d) (ii) (iii) (iv) (i)
Last Answer : (d) (ii) (iii) (iv) (i)
Description : Polygenic genes show: (a) Different phenotype (b) Different genotype (c) Similar phenotype (d) Similar genotype
Last Answer : Ans. ((a))
Description : What are the regions associated with a particular phenotypic trait having polygenic effect called as? a. Junk DNA b. Alleles c. Quantitative trait loci d. Discrete variables
Last Answer : c. Quantitative trait loci
Description : Situations in which one allele for a gene is not completely dominant over another allele for that gene are called a. multiple alleles. b. incomplete dominance. c. polygenic inheritance. d. multiple genes.
Last Answer : b. incomplete dominance.
Description : How is it possible for two individuals to have the same phenotype but a different genotypes for a trait?
Last Answer : it is possible beccause you dont always need both
Description : What can you determine about an organism's genotype if a recessive trait is expressed in an organism's phenotype?
Last Answer : Feel Free to Answer
Description : One trait a plant can have is either red leaves (R) or brown leaves (r). Another trait is tall stems (T) or short stems (t). A plant used in a dihybrid cross has the genotype RRTt. what is the phenotype of this plant?
Last Answer : red leaves, tall stems
Description : The cross of F1 hybrid with an individual having recessive phenotype for concerned trait is called a. Test cross b. Multiple cross c. Top cross d. Polly cross
Last Answer : a. Test cross
Description : 5 Consider a cross in which a trait is inherited by incomplete dominance. What percentage of the F2 from the matng of homozygous dominant and homozygous recessive individuals will possess the dominant phenotype? a) 0 per cent b) 25 per cent c) 50 per cent d) 75 per cent
Last Answer : ANS: b 25 per cent
Description : The physical appearance and properties of an organism which is the expression of the genetic makeup is called the: a) phenotype b) pangenesis c) parental trait d) genotype
Last Answer : ANSWER: A -- PHENOTYPE
Description : Is a gene with multiple alleles three or more alleles of a single trait?
Description : When a single gene influences more than one trait it is called (a) pseudodominance (b) pleiotropy (c) epistasis (d) none of these.
Last Answer : (b) pleiotropy
Description : What if homosexuality had a distinct physical trait?
Last Answer : As far as I can see, the only effect would be an increase in the eyebrow dyeing market. Oh, and razor blades for shaving off one’s eyebrows.
Description : Two non-allelic genes produces the new phenotype when present together but fail to do so independently then it is called (a) epistasis (b) polygene (c) non complementary gene (d) complementary gene.
Last Answer : epistasis
Description : The sum of genes in a population is called – (1) Phenotype (2) Karyotype (3) Genotype (4) Gene pool
Last Answer : (4) Gene pool Explanation: Phenotype refers to a set of observable characteristics of an individual or group resulting from the interaction of its genotype with its environment. Gene pool refers to the stock of different genes in an interbreeding population.
Description : Alleles are (a) different molecular forms of a gene (b) heterozygotes (c) different phenotype (d) true breeding homozygotes
Last Answer : Alleles are (a) different molecular forms of a gene (b) heterozygotes (c) different phenotype (d) true breeding homozygotes.
Description : The sum of genes in a population is called (1) Phenotype (2) Karyotype (3) Genotype (4) Gene pool
Last Answer : Gene pool
Description : A pleiotropic gene (a) controls a trait only in combination with another gene (b) controls multiple traits in an individual (c) is expressed only in primitive plants (d) is a gene evolved during Pliocene.
Last Answer : (a) controls a trait only in combination with another gene
Description : What is a trait called when it is controlled by more than one gene?
Last Answer : Polygenic Traits
Description : What term would best be used to describe an organism possessing two identical gene for a trait?
Last Answer : homozygous
Description : If a person has one copy of each of two different alleles (ie Bb) for a given gene the person is for that trait.?
Last Answer : Need answer
Description : What is The stronger gene for a trait always shows up in offspring?
Last Answer : the dominant allele or gene
Description : A selectable marker is used to (a) help in eliminating the non-transformants, so that the transformants can be regenerated (b) identify the gene for a desired trait in an alien organism (c) ... in a specific crop (d) mark a gene on a chromosome for isolation using restriction enzyme.
Last Answer : (a) help in eliminating the non-transformants, so that the transformants can be regenerated
Description : In autosomal recessive inheritance: a. the rarer the trait the higher the possibility of marriages within the same family b. most recessive gene defects cause problem through failure to produce functional protein c. both males and females are affected equally severely d. all above
Last Answer : all above
Description : The ribosome binding site A- forms a stem-loop structure in the RNA B- is located upstream of the promoter sequence C- .is located immediately upstream of the start codon D- is more likely to be associated with an operon than with a gene encoding a single protein
Last Answer : .is located immediately upstream of the start codon
Description : The rivosome binding site A- forms a sltem- loop structure in the RNA B- is located upstream of the promoter sequence C- is located immediately upstream of the start codon D- is more likely to be associated with an operon than with a gene encoding a single protein
Last Answer : is located immediately upstream of the start codon
Description : If three equal chords meet at three distinct points on the circle, then the angle between any two chords is `____________`.
Last Answer : If three equal chords meet at three distinct points on the circle, then the angle between any two chords is `____________`.
Description : What can you choose any two distinct points on a line to calculate the slope?
Last Answer : What is the answer ?
Description : When you Visualize 2 distinct points on a line. The points divide the line into separate regions. How many distinct regions is the line divided into?
Last Answer : It is divided into three regions.
Description : In polygenic inheritance phenotypic characters are determined by -Biology
Last Answer : answer:
Description : What is Polygenic Inheritance ?
Last Answer : : Polygenic inheritance refers to the phenotypic traits found in a single inheritance formula that are controlled by two or more genes.
Description : Which one of the following pairs of features is a good example of polygenic inheritance?
Last Answer : Which one of the following pairs of features is a good example of polygenic inheritance? A. Human ... D. Human eye colour and sickle cell anaemia
Description : $ Inharitance of flower colour in mirabilis jalapa is type of polygenic inheritance. ! Polysomes are a type of chromosomes.
Last Answer : $ Inharitance of flower colour in mirabilis jalapa is type of polygenic inheritance. ! Polysomes are a type ... wrong D. If both As and R are wrong.
Description : A polygenic inheritance in human beings is (a) skin colour (b) phenylketonuria (c) colour blindness (d) sickle cell anaemia
Last Answer : (a) skin colour
Description : The polygenic genes show (a) different karyotypes (b) different genotypes (c) different phenotypes(d) none of these.
Last Answer : (c) different phenotypes
Description : . Which one of the following is an example of polygenic inheritance? (a) Skin colour in humans (b) Flower colour in Mirabilis jalapa (c) Production of male honeybee (d) Pod shape in garden pea
Last Answer : (a) Skin colour in humans
Description : Inheritance of skin colour in humans is an example of (a) point mutation (b) polygenic inheritance (c) codominance (d) chromosomal aberration.
Last Answer : (b) polygenic inheritance
Description : Which of the following characteristics represent ‘inheritance of blood groups’ in humans? (i) Dominance (ii) Co-dominance (iii)Multiple allele (iv) Incomplete dominance (v) Polygenic inheritance (a) (ii), (iii) and (v) (b) (i), (ii) and (iii) (c) (ii), (iv) and (v) (d) (i), (iii) and (v)
Last Answer : (b) (i), (ii) and (iii)
Description : Mendel’s last law is (a) segregation (b) dominance (c) independent assortment (d) polygenic inheritance.
Last Answer : (c) independent assortment
Description : Which of the following characteristics represent 'Inheritance of blood groups' in humans ? a. Dominance b. Co-dominance c. Multiple dominance d. Incomplete dominance e. Polygenic inheritance (1) b, c and e (2) a, b and c (3) b, d and e (4) a, c and e
Last Answer : (2) a, b and c
Description : A cross of a red cow (RR) with a white bull (WW) produces all roan offspring (RRWW). This type of inheritance is known as a. incomplete dominance. b. polygenic inheritance. c. codominance. d. multiple alleles.
Last Answer : c. codominance.
Description : The colour blindness is more likely to occur in males than in females because (a) the Y-chromosome of males have the genes for distinguishing colours (b) genes for characters are located on the sex- chromosomes (c) the trait is dominant in males and recessive in females (d) none of these.
Last Answer : (b) genes for characters are located on the sex- chromosomes
Description : 16.15 The hypothalamic gonadotropin releasing hormone (GnRH) is: A. A single peptide B. A mixture of two distinct peptides FSH-RH and LH-RH C. A mixture of several peptides D. Dopamine
Last Answer : A. A single peptide
Description : What personality trait most likely leads to victor downfall?
Last Answer : Arrogance
Description : What character trait would Eliot most likely need in order to over come obstacles along the trail?
Description : If a male who is heterozygous for an autosomal trait mates with a female who is also heterozygous for that trait, what percent of their offspring are likely to be heterozygous for this trait as well?
Last Answer : ANSWER: 50%
Description : What single animal or plant trait would you want humans to have if given the chance to evolve?
Last Answer : A renewed ability to produce vitamin C and photo-synthetic skin.
Description : What is Different forms of genes for a single trait?