Description : Why are chromosomes called the physical basis of heredity ?
Last Answer : The number of thread-like chromosomes in the nucleus control the hereditary traits of an organism. In general, the DNA molecules of chromosomes in hereditary transport carry the characteristics of the ... carried by the genes. This is why chromosomes are called the physical basis of heredity.
Description : .Experiments on Acetabularia by Hammerling proved the role of (a) cytoplasm in controlling differentiation (b) nucleus in heredity (c) chromosomes in heredity (d) nucleo-cytoplasmic ratio.
Last Answer : (b) nucleus in heredity
Description : That genes control heredity through their control on enzyme synthesis and that one gene controls the sythesis of one enzyme - the one gene one enzyme hypothesis — was proposed by (a) Beadle and Tatum (b) Darwin (c) Mendel (d) Morgan
Last Answer : Ans:(a)
Description : What are the structures called that give an appearance as ‘beads-on-string’ in the chromosomes when viewed under electron microscope? (a) Genes (b) Nucleotides (c) Nucleosomes (d) Base pairs
Last Answer : Nucleosomes
Description : This female American geneticist achieved recognition as one of the world's foremost investigators in cytogenetics, the study of heredity by cellular and genetic methods. In 1951 she discovered that gene ... was awarded the Nobel Prize in medicine in 1983. Who is this notable woman scientist?
Last Answer : ANSWER: (BARBARW) McCLINTOCK
Description : Which one of the following statements about the particular entity is true ? (a) Centromere is found in animal cells, which produces aster during cell division. (b) The gene for producing insulin is ... cell. (c) Nucleosome is formed of nucleotides. (d) DNA consists of core of eight histones.
Last Answer : (b) The gene for producing insulin is present in every body cell.
Description : The smallest unit of DNA capable of coding for the synthesis of a polypeptide is (A) Operon (B) Repressor gene (C) Cistron (D) Replicon
Last Answer : Answer : C
Description : Answer: Genetics is the study of heredity and variations.
Last Answer : Who said, “A bird is an instrument working according to the mathematical laws”?
Description : What is A situation in which genes are attached to an organisms sex chromosomes the sex of an organism influences the expression of a gene?
Last Answer : s.e.x linked
Description : A Gene is (A) A single protein molecule (B) A group of chromosomes (C) An instruction for making a protein molecule (D) A bit of DNA molecule
Last Answer : Answer : D
Description : .Of a normal couple, half the sons are haemophiliac while half the daughters are carriers. The gene is located on (a) X-chromosome of father (b) Y-chromosome of father (c) one X-chromosome of mother (d) both the X-chromosomes of mother
Last Answer : (c) one X-chromosome of mother
Description : A woman with two genes for haemophilia and one gene for colour blindness on one of the X' chromosomes marries a normal man. How will the progeny be? (a) 50% haemophilic colour-blind sons ... ). (c) All sons and daughters haemophilic and colour- blind. (d) Haemophilic and colour-blind daughters.
Last Answer : (b) 50% haemophilic daughters (carrier) and 50% colour blind daughters (carrier).
Description : Which of the following statements is not true of two genes that show 50% recombination frequency? (a) The gene show independent assortment. (b) If the genes are present on the same chromo- some, they ... every meiosis. (c) The genes may be on different chromosomes. (d) The genes are tightly linked.
Last Answer : (b) If the genes are present on the same chromo- some, they undergo more than one cross-overs in every meiosis.
Description : In a test cross involving F1 dihybrid flies, more parental-type offspring were produced than the recombinant-type offspring. This indicates (a) the two genes are linked and present on the ... two genes are located on two different chromosomes (d) chromosomes failed to separate during meiosis.
Last Answer : (a) the two genes are linked and present on the same chromosome
Description : Nondisjunction of a chromosome results in which of the following diagnoses? a) Down Syndrome When a pair of chromosomes fails to separate completely and creates a sperm or oocyte that contains two ... genetic condition that may occur in a single family member as a result of spontaneous mutation.
Last Answer : a) Down Syndrome When a pair of chromosomes fails to separate completely and creates a sperm or oocyte that contains two copies of a particular chromosome (nondisjunction) Down syndrome results from three number 21 chromosomes.
Description : Gametes have a. homologous chromosomes. b. twice the number of chromosomes found in body cells. c. two sets of chromosomes. d. one allele for each gene.
Last Answer : d. one allele for each gene.
Description : Homozygous refers to: a) similar types of chromosomes b) having similar functions on an evolutionary basis c) particles in solution that are inseparable d) having identical alleles for a given gene
Last Answer : ANSWER: D -- HAVING IDENTICAL ALLELES FOR A GIVEN GENE
Description : Complete the sentence. The alternative forms of gene at the same locus on homologous chromosomes are called what?
Last Answer : ANSWER: ALLELES
Description : Put the following structures in order from smallest to biggest, Chromosome, Genome, Nucleotide Base, Codon, Gene, Cell Nucleus?
Last Answer : The order is nitrogenous base, nucleotide, codon, gene, chromosome, nucleus, and cell. :)
Description : .Identify the correct order of organisation of genetic material from largest to smallest. (a) Genome, chromosome, gene, nucleotide (b) Chromosome, genome, nucleotide, gene (c) Chromosome, gene, genome, nucleotide (d) Genome, chromosome, nucleotide, gene (
Last Answer : (a) Genome, chromosome, gene, nucleotide
Description : Gregor Mendel is often referred to as the Father of Genetics since he first enunciated the Principles of Heredity. His experimental material was (a) fruit fly (b) bread mould (c) pea plant (d) rhesus monkey
Last Answer : Ans:(c)
Description : Genes control (a) Protein synthesis but not heredity (b) Protein synthesis and heredity (c) Heredity but not protein synthesis (d) Biochemical reaction of some enzymes
Last Answer : Ans:(b)
Description : Which nuclei acid is responsible for heredity?
Last Answer : Deoxyribo Nucleic Acid (DNA)
Description : Define heredity.
Last Answer : Heredity is the inheritance of parental characteristics by their off springs.
Description : the theory that animal behavior stems from heredity and environmental experiences is known as -General Knowledge
Last Answer : The theory that animal behavior stems from heredity and environmental experiences is known as - Sociobiology.
Description : What is heredity? -Biology
Last Answer : answer:
Description : Two laws of heredity that resulted from Mendel work -Biology
Description : Which branch of biology deal with the study of heredity? -Do You Know?
Description : Who gave the rules of heredity? -General Knowledge
Description : What is heredity ?
Last Answer : The process by which the traits of the parents are transmitted to the offspring is called heredity.
Description : What is Heredity ?
Last Answer : : Heredity is the process by which the traits of the parents are transmitted from one generation to the next. For example , from mango seed to mango tree, from jute seed to jute tree , ... to rice plant. In this way the characteristics of the species are maintained from generation to generation.
Description : Who is the bearer and carrier of heredity ?
Last Answer : : Chromosomes are hereditary bearers and carriers.
Description : What is the physical basis of heredity ?
Last Answer : Physical chromosomes of heredity.
Last Answer : : Hereditary chromosomes.
Last Answer : The physical basis of heredity is: chromosomes.
Last Answer : : The branch of biology that deals with heredity in detail is called genetics.
Last Answer : Gregor Johann Mendel.
Last Answer : The father or inventor of genetics (Gregor Johann Mendel)
Last Answer : The main component of heredity is the chromosome
Last Answer : The father of genetics 'Gregor Johann Mendel'
Last Answer : Mendel His Of the garden Peas Of trees On Different Examination - Audit Continue The formulas Preparation Does. Local ' Natural History In the journal ' These Published Although Long Thirty Years ... Different Branch As Establishment Gets. .. this For . Gregor Johan Mendel Heredity Vidya For Famous
Description : The experimental material used by hershey and Chase for proving that DNA controls heredity was
Last Answer : The experimental material used by hershey and Chase for proving that DNA controls heredity was A. Escherichia ... typhimurium C. T(2) phage D. TMV
Description : What Personality traits are influenced from a combination of heredity and?
Last Answer : enviorment
Description : What characteristics does an individual obtain throught heredity?
Last Answer : Feel Free to Answer
Description : When studying heredity what is the relationship of DNA bases and traits?
Description : Which branch of science deals with heredity and the laws that govern it?
Last Answer : Genetics
Description : Which of the following personalities gave ‘The Laws of Heredity’?
Last Answer : G.J. Mendel
Description : Chromosomal theory of heredity was proposed by
Last Answer : Ans. W. Sutton (1902)
Description : The study of the way in which genes operate and the way in which they are transmitted (heredity) from parents to offsprings
Last Answer : Ans. Genetics