What are homologous chromosomes? -Biology

Description : Identify the meiotic sage in which the homologous chromosomes separate while the sister chromatids remain associated at their centrometres. Or In whic

Last Answer : Identify the meiotic sage in which the homologous chromosomes separate while the sister chromatids remain ... II C. Metaphase I D. Metaphase II

Pairing of homologous chromosomes is called :-

Description : Pairing of homologous chromosomes is called :-

Last Answer : Pairing of homologous chromosomes is called :- A. Disjunction B. Synapsis C. Segregation D. Polyteny

Separation of homologous chromosomes during Anaphase -I is called:-

Description : Separation of homologous chromosomes during Anaphase -I is called:-

Last Answer : Separation of homologous chromosomes during Anaphase -I is called:- A. Synapsis B. Disjunction C. Nondisjunction D. Crossing over

What happens to each pair of duplicated homologous chromosomes during meiosis 1?

Description : What happens to each pair of duplicated homologous chromosomes during meiosis 1?

Last Answer : Need answer

What stage are there homologous chromosomes lined up down the middle of the cell?

Description : What stage are there homologous chromosomes lined up down the middle of the cell?

Last Answer : Metaphase 1

What random distribution of homologous chromosomes during meiosis?

Description : What random distribution of homologous chromosomes during meiosis?

Last Answer : What is the answer ?

What paired set of homologous chromosomes each composed of two sister chromatids?

Description : What paired set of homologous chromosomes each composed of two sister chromatids?

Last Answer : What is the answer ?

In which stage of meiosis do homologous chromosomes separate?

Description : In which stage of meiosis do homologous chromosomes separate?

Last Answer : Need answer

What and the difference between homologous chromosomes and sister chromatids?

Description : What and the difference between homologous chromosomes and sister chromatids?

Last Answer : Homologous chromosomes is a pair made of a paternal and maternalchromosomes. But sister chromatid is either pairs of paternal ormaternal chromosomes

Which of these statements about homologous autosomal chromosomes is true?

Description : Which of these statements about homologous autosomal chromosomes is true?

Last Answer : each of a homologous pair is the same size and shape as itspartner

Exchange of chromatin between non-sister chromatids of homologous chromosomes is known as

Description : Exchange of chromatin between non-sister chromatids of homologous chromosomes is known as

Last Answer : Ans. Crossing over

How many pairs of homologous chromosomes do humans have?

Description : How many pairs of homologous chromosomes do humans have?

Last Answer : Ans. 23 (II) Plant Breeding

What are homologous chromosomes ?

Description : What are homologous chromosomes ?

Last Answer : Which are the human cells that do not have homologous chromosomes? Chromosomes contain genes (genetic information in the form of nucleotide sequences) that command the protein synthesis thus ... chromosomes are the gametes since during meiosis the homologous chromosomes are separated.

Independent assortment of genes does not take place when (a) genes are located on homologous chromosomes (b) genes are linked and located on same chromosome (c) genes are located on non-homogenous chromosome (d) all of these.

Description : Independent assortment of genes does not take place when (a) genes are located on homologous chromosomes (b) genes are linked and located on same chromosome (c) genes are located on non-homogenous chromosome (d) all of these.

Last Answer : genes are linked and located on same chromosome

Meiosis I is reductional division. Meiosis II is equational division due to (a) pairing of homologous chromosomes (b) crossing over (c) separation of chromatids (d) disjunction of homologous chromosomes.

Description : Meiosis I is reductional division. Meiosis II is equational division due to (a) pairing of homologous chromosomes (b) crossing over (c) separation of chromatids (d) disjunction of homologous chromosomes.

Last Answer : (c) separation of chromatids

Meiosis II performs (a) separation of sex chromosomes (b) synthesis of DNA and centromere (c) separation of homologous chromosomes (d) separation of chromatids.

Description : Meiosis II performs (a) separation of sex chromosomes (b) synthesis of DNA and centromere (c) separation of homologous chromosomes (d) separation of chromatids.

Last Answer : d) separation of chromatids.

Synapsis occurs between (a) mRNA and ribosomes (b) spindle fibres and centromere (c) two homologous chromosomes (d) a male and a female gamete.

Description : Synapsis occurs between (a) mRNA and ribosomes (b) spindle fibres and centromere (c) two homologous chromosomes (d) a male and a female gamete.

Last Answer : (c) two homologous chromosomes

Identify the meiotic stage in which the homologous chromosomes separate while the sister chromatids remain associated at their centromeres. (a) Metaphase I (b) Metaphase II (c) Anaphase I (d) Anaphase I

Description : Identify the meiotic stage in which the homologous chromosomes separate while the sister chromatids remain associated at their centromeres. (a) Metaphase I (b) Metaphase II (c) Anaphase I (d) Anaphase I

Last Answer : (c) Anaphase I

The complex formed by a pair of synapsed homologous chromosomes is called (a) bivalent (b) axoneme (c) equatorial plate (d) kinetochore.

Description : The complex formed by a pair of synapsed homologous chromosomes is called (a) bivalent (b) axoneme (c) equatorial plate (d) kinetochore.

Last Answer : (a) bivalent

Select the correct option. Column I Column II A. Synapsis aligns (i) Anaphase II homologous chromosomes B. Synthesis of (ii) Zygotene RNA and protein C. Action of enzyme (iii)G2-phase recombinase D. Centromeres do (iv) Anaphase I not separate but chromatids move towards opposite poles (v) Pachytene (a) A-(i), B-(ii), C-(v), D-(iv) (b) A-(ii), B-(iii), C-(iv), D-(v) (c) A-(ii), B-(i), C-(iii), D-(iv) (d) A-(ii), B-(iii), C-(v), D-(iv)

Description : Select the correct option. Column I Column II A. Synapsis aligns (i) Anaphase II homologous chromosomes B. Synthesis of (ii) Zygotene RNA and protein C. Action of enzyme (iii)G2-phase recombinase D. Centromeres do (iv) Anaphase I not ... ), C-(iii), D-(iv) (d) A-(ii), B-(iii), C-(v), D-(iv)

Last Answer : (d) A-(ii), B-(iii), C-(v), D-(iv)

Match the stages of meiosis in column I to their characteristic features in column II and select the correct option using the codes given below. Column I Column II A. Pachytene (i) Pairing of homologous chromosomes B. Metaphase I (ii) Terminalisation of chiasmata C. Diakinesis (iii) Crossing-over takes place D. Zygotene (iv) Chromosomes align at equatorial plate (a) A-(iii), B-(iv), C-(ii), D-(i) (b) A-(i), B-(iv), C-(ii), D-(iii) (c) A-(ii), B-(iv), C-(iii), D-(i) (d) A-(iv), B-(iii), C-(ii), D-(i)

Description : Match the stages of meiosis in column I to their characteristic features in column II and select the correct option using the codes given below. Column I Column II A. Pachytene (i) Pairing of homologous chromosomes B. Metaphase I (ii) ... , C-(iii), D-(i) (d) A-(iv), B-(iii), C-(ii), D-(i)

Last Answer : (a) A-(iii), B-(iv), C-(ii), D-(i)

The stage during which separation of the paired homologous chromosomes begins is (a) pachytene (b) diplotene (c) diakinesis (d) zygotene.

Description : The stage during which separation of the paired homologous chromosomes begins is (a) pachytene (b) diplotene (c) diakinesis (d) zygotene.

Last Answer : (b) diplotene

Crossing over takes place between which chromatids and in which stage of the cell cycle ? (a) Non-sister chromatids of non-homologous chromosomes at Zygotene stage of prophase I. (b) Non-sister chromatids of homologous chromosomes at Pachytene stage of prophase I. (c) Non-sister chromatids of homologous chromosomes at Zygotene stage of prophase I. (d) Non-sister chromatids of non-homologous chromosomes at Pachytene stage of prophase I.

Description : Crossing over takes place between which chromatids and in which stage of the cell cycle ? (a) Non-sister chromatids of non-homologous chromosomes at Zygotene stage of prophase I. (b) Non- ... prophase I. (d) Non-sister chromatids of non-homologous chromosomes at Pachytene stage of prophase I.

Last Answer : (b) Non-sister chromatids of homologous chromosomes at Pachytene stage of prophase I.

.In salivary gland chromosomes/polytene chromosomes, pairing is (a) absent (b) occasional (c) formed between non-homologous chromosomes (d) formed between homologous chromosomes.

Description : .In salivary gland chromosomes/polytene chromosomes, pairing is (a) absent (b) occasional (c) formed between non-homologous chromosomes (d) formed between homologous chromosomes.

Last Answer : (d) formed between homologous chromosomes.

Which of the following type of recombination does not require homologous sequences and isutilized by mobile genetic elements that move about chromosomes? A.Mutagenicrecombimation B.Site-specific recombination C.Replicative recombination D.General recombination

Description : Which of the following type of recombination does not require homologous sequences and isutilized by mobile genetic elements that move about chromosomes? A.Mutagenicrecombimation B.Site-specific recombination C.Replicative recombination D.General recombination

Last Answer : C.Replicative recombination

Recombination of virus genomes occurs A- by transduction B- by transcription C- simultaneous infection of a host cell by two viruses with homologous chromosomes D- by transformation

Description : Recombination of virus genomes occurs A- by transduction B- by transcription C- simultaneous infection of a host cell by two viruses with homologous chromosomes D- by transformation

Last Answer : simultaneous infection of a host cell by two viruses with homologous chromosomes

Which of the following type of recombination does not require homologous sequences and isimportant for the integration of viral genomes into bacterial chromosomes? A- Mutagenic recombimation B- Site-specific recombination C- Replicative recombination D- General recombination

Description : Which of the following type of recombination does not require homologous sequences and isimportant for the integration of viral genomes into bacterial chromosomes? A- Mutagenic recombimation B- Site-specific recombination C- Replicative recombination D- General recombination

Last Answer : Site-specific recombination

The stage during which separation of the paired homologous chromosomes begins is (1) Pachytene (2) Diplotene (3) Diakinesis (4) Zygotene

Description : The stage during which separation of the paired homologous chromosomes begins is (1) Pachytene (2) Diplotene (3) Diakinesis (4) Zygotene

Last Answer : (2) Diplotene

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.

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.

Complete the sentence. The alternative forms of gene at the same locus on homologous chromosomes are called what?

Description : Complete the sentence. The alternative forms of gene at the same locus on homologous chromosomes are called what?

Last Answer : ANSWER: ALLELES

What are homologous structures? Give an example. Is it necessary that homologous structures always have a common ancestor? -Biology

Description : What are homologous structures? Give an example. Is it necessary that homologous structures always have a common ancestor? -Biology

Last Answer : Yes, It is necessary that homologous structures always have a common ancestor. As explained in the above example, the basic structure of arm of human and wing of bat is similar but ... different function in different vertebrates. Therefore, this shows that they have evolved from a common ancestor.

Distinguish between homologous organs and analogous organs. In which category ; would you place wings of a bird and wings of a bat? Justify your answer giving a suitable reason. -Biology

Description : Distinguish between homologous organs and analogous organs. In which category ; would you place wings of a bird and wings of a bat? Justify your answer giving a suitable reason. -Biology

Last Answer : Answer. Wings of a bird and wings of a bat are analogous organs as they have different basic structural design but have similar appearance and perform similar functions.

What are homologous organs? Can the wing of a butterfly and the wing of a bat be regarded as homologous? Why? -Biology

Description : What are homologous organs? Can the wing of a butterfly and the wing of a bat be regarded as homologous? Why? -Biology

Last Answer : Homologous organs are those organs which have the same basic structural design and developmental origin but have different functions and appearance. Example: The forelimb of a frog, a lizard, a bird and ... for flying but their origin and structure are not common. So, they are analogous organs.

Explain with examples how the following are evidences in favour of evolution in organisms. (i) Homologous organs (ii) Analogous organs (iii) Fossils -Biology

Description : Explain with examples how the following are evidences in favour of evolution in organisms. (i) Homologous organs (ii) Analogous organs (iii) Fossils -Biology

Last Answer : i) Forelimb of human and bird are homologous organs. They have same structural design and developmental origin but they have different functions and appearance. Homologous organs help us to understand that ... and a long tail. This fossil provides a clue that birds have evolved from reptiles.

List all homologous structure of human male and female reproductive system. -Biology

Description : List all homologous structure of human male and female reproductive system. -Biology

Last Answer : answer:

What is the difference between a homologous and analogous structure?

Description : What is the difference between a homologous and analogous structure?

Last Answer : A: Homologous structures are anatomical features that have a similar evolutionary origin, but may have different functions, while analogous structures are anatomical features that have a similar function, but may have different evolutionary origins.

What is the difference between a homologous and an analogous structure?

Description : What is the difference between a homologous and an analogous structure?

Last Answer : A: Homologous structures are similar in structure and origin, but may have different functions, while analogous structures have similar functions but evolved independently and have different origins.

What is the difference between a homologous chromosome and a sister chromatid?

Description : What is the difference between a homologous chromosome and a sister chromatid?

Last Answer : A: Homologous chromosomes are pairs of chromosomes that carry the same genes, while sister chromatids are identical copies of a single chromosome that are formed during DNA replication.

Are strongly homologous proteins identical in function?

Description : Are strongly homologous proteins identical in function?

Last Answer : I have my assumptions, but the question isn’t really clear unless we have an idea of what it is you think that it’s supposed to mean… I don’t see how being a skeptical agnostic is connected with the discussion of proteins.

Which of the following is not observed in a homologous series? Give reason for your choice. -Science

Description : Which of the following is not observed in a homologous series? Give reason for your choice. -Science

Last Answer : c) Gradation in physical properties

What is the difference in the molecular formula of any two consecutive members of a homologous series of organic compounds? -Chemistry

Description : What is the difference in the molecular formula of any two consecutive members of a homologous series of organic compounds? -Chemistry

Last Answer : —CH2— is the difference in the molecular formula of any two consecutive members of a homologous series of organic compounds.

What are homologous chromosomes? -Biology

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