Crossing-over occurs during (1) Leptotene (2) Zygotene (3) Path ene (4) Diplotene

Crossing-over occurs during (1) Leptotene (2) Zygotene (3) Path ene (4) Diplotene
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(3) Path ene Explanation: Chromosomal crossover (or crossing over) is the exchange of genetic material between homologous chromosomes that results in recombinant chromosomes. It is one of the final phases of genetic recombination, which occurs during prophase I of meiosis (pachytene) during a process called synapsis.
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Crossing-over occurs during (1) Leptotene (2) Zygotene (3) Pachytene (4) Diplotene

Description : Crossing-over occurs during (1) Leptotene (2) Zygotene (3) Pachytene (4) Diplotene

Last Answer : Pachytene

In meiosis crossing over is initiated at (a) zygotene (b) diplotene (c) pachytene (d) leptotene.

Description : In meiosis crossing over is initiated at (a) zygotene (b) diplotene (c) pachytene (d) leptotene.

Last Answer : (c) (ii), (i), (iv), (iii)

Dissolution of the synaptonemal complex occurs during (a) pachytene (b) zygotene (c) diplotene (d) leptotene

Description : Dissolution of the synaptonemal complex occurs during (a) pachytene (b) zygotene (c) diplotene (d) leptotene

Last Answer : (c) diplotene

During meiosis I, the chromosomes start pairing at (a) zygotene (b) pachytene (c) diplotene (d) leptotene.

Description : During meiosis I, the chromosomes start pairing at (a) zygotene (b) pachytene (c) diplotene (d) leptotene.

Last Answer : (a) zygotene

Match the following with respect to meiosis. (A) Zygotene (i) Terminalization (B) Pachytene (ii) Chiasmata (C) Diplotene (iii)Crossing over (D) Diakinesis (iv) Synapsis

Description : Match the following with respect to meiosis. (A) Zygotene (i) Terminalization (B) Pachytene (ii) Chiasmata (C) Diplotene (iii)Crossing over (D) Diakinesis (iv) Synapsis

Last Answer : (b) (iv) (iii) (ii) (i)

Segregation of Mendelian factor (Aa) occurs during (a) diplotene (b) anaphase I (c) zygotene/pachytene (d) anaphase II.

Description : Segregation of Mendelian factor (Aa) occurs during (a) diplotene (b) anaphase I (c) zygotene/pachytene (d) anaphase II.

Last Answer : b) anaphase I

Segregation of Mendelian factors (no linkage, no crossing over) occurs during (a) anaphase I (b) anaphase II (c) diplotene (d) metaphase I.

Description : Segregation of Mendelian factors (no linkage, no crossing over) occurs during (a) anaphase I (b) anaphase II (c) diplotene (d) metaphase I.

Last Answer : a) anaphase 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

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

The enzyme recombinase is required at which stage of meiosis? (a) Pachytene (b) Zygotene (c) Diplotene (d) Diakinesis

Description : The enzyme recombinase is required at which stage of meiosis? (a) Pachytene (b) Zygotene (c) Diplotene (d) Diakinesis

Last Answer : (a) Pachytene

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)

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.

Which of the following yields But-2 ene on dehydration with conc.`H_(2)SO_(4)`?

Description : Which of the following yields But-2 ene on dehydration with conc.`H_(2)SO_(4)`?

Last Answer : Which of the following yields But-2 ene on dehydration with conc.`H_(2)SO_(4)`? A. 2-Methyl-2- ... 2-Propanol C. 2-Methyl-2-propanol D. Butan-2-ol

Which of the following compounds can show geometrical isomerism : (i) Pent-1-ene (ii) 1-chloropropene (iii) 2-Methylbut-2-ene (iv) `CH_(3)-CH=CH-CH_(3

Description : Which of the following compounds can show geometrical isomerism : (i) Pent-1-ene (ii) 1-chloropropene (iii) 2-Methylbut-2-ene (iv) `CH_(3)-CH=CH-CH_(3

Last Answer : Which of the following compounds can show geometrical isomerism : (i) Pent-1-ene (ii) 1-chloropropene (iii) 2- ... -ene (iv) `CH_(3)-CH=CH-CH_(3)`

A charged particle is rotating in uniform circular motion in a uniform magnetic field . Let r= radius of circule, v= speed of particle k = kinetic ene

Description : A charged particle is rotating in uniform circular motion in a uniform magnetic field . Let r= radius of circule, v= speed of particle k = kinetic ene

Last Answer : A charged particle is rotating in uniform circular motion in a uniform magnetic field . Let r ... angular speed. then match the following two columns.

Trans-Pent-2-ene is polar while trans-but-2-ene is non polar. Explain.

Description : Trans-Pent-2-ene is polar while trans-but-2-ene is non polar. Explain.

Last Answer : Ans. In trans-but-2-ene, the dipole moment of two C-CH3 bonds are equal and opposite and hence they exactly cancel out each other. Thus trans-but-2-ene is non polar. In trans-pent-2-ene, ... cancel out each other and hence trans-pent2-ene has a small value of dipole moment and thus is polar.

Among Cis and Trans structure of Hex-2-ene which has higher boiling point and why?

Description : Among Cis and Trans structure of Hex-2-ene which has higher boiling point and why?

Last Answer : Ans: The dipole moment of a molecule depends upon dipole-dipole interactions. Since cis-isomer has higher dipole moment, therefore it has higher boiling point.

Crossing over that results in genetic recombination in higher organisms occurs between

Description : Crossing over that results in genetic recombination in higher organisms occurs between

Last Answer : Crossing over that results in genetic recombination in higher organisms occurs between A. Non- ... bivalents D. Sister chromatids of a bivalents

Synapsis and crossing over of chromosomes occurs i which phases of meiosis? a) Interphase b) Prophase c) Meterphase d) Teleophase

Description : Synapsis and crossing over of chromosomes occurs i which phases of meiosis? a) Interphase b) Prophase c) Meterphase d) Teleophase

Last Answer : ANSWER: B -- PROPHASE

Does a second black cat crossing your path cancel out the first or double the woe to come?

Description : Does a second black cat crossing your path cancel out the first or double the woe to come?

Last Answer : A black cat crossing my path- any number of times- usually means that I am going to spend the next several minutes petting a black cat.

Select the incorrect match. (a) Lampbrush – Diplotene bivalents chromosomes (b) Allosomes – Sex chromosomes (c) Sub-metacentric – L-shaped chromosomes chromosomes (d) Polytene – Oocytes of chromosomes amphibians

Description : Select the incorrect match. (a) Lampbrush – Diplotene bivalents chromosomes (b) Allosomes – Sex chromosomes (c) Sub-metacentric – L-shaped chromosomes chromosomes (d) Polytene – Oocytes of chromosomes amphibians

Last Answer : (d) Polytene – Oocytes of chromosomes amphibians

Select the incorrect match : (1) Lampbrush – Diplotene bivalents chromosomes (2) Allosomes – Sex chromosomes (3) Submetacentric – L-shaped chromososmes chromosomes (4) Polytene – Oocytes of amphibians chromosomes

Description : Select the incorrect match : (1) Lampbrush – Diplotene bivalents chromosomes (2) Allosomes – Sex chromosomes (3) Submetacentric – L-shaped chromososmes chromosomes (4) Polytene – Oocytes of amphibians chromosomes

Last Answer : (4) Polytene – Oocytes of amphibians chromosomes

Assertion :- Zygotene is charactersed by formation of synaptonemal complex . Reason :- Synoptonemal complex helps in synapsis of non homologous chromo

Description : Assertion :- Zygotene is charactersed by formation of synaptonemal complex . Reason :- Synoptonemal complex helps in synapsis of non homologous chromo

Last Answer : Assertion :- Zygotene is charactersed by formation of synaptonemal complex . Reason :- Synoptonemal complex ... If both Assertion & Reason are false.

Match the columns-I with column-II and select the correct answer :- `{:(" Column-I"," Column-II"),("(A)Pachytene","(i)Bouqute stage"),("(B)Zygotene","

Description : Match the columns-I with column-II and select the correct answer :- `{:(" Column-I"," Column-II"),("(A)Pachytene","(i)Bouqute stage"),("(B)Zygotene","

Last Answer : Match the columns-I with column-II and select the correct answer :- `{:(" Column-I"," Column-II"),("(A)Pachytene", ... D. A-ii, B-iii, C-iv, D-i, E-v

Morphology of Chromosomes can be best studied at - (1) Interphase (2) Prophase (3) Metaphase (4) Zygotene

Description : Morphology of Chromosomes can be best studied at - (1) Interphase (2) Prophase (3) Metaphase (4) Zygotene

Last Answer : (3) Metaphase Explanation: The morphology of the chromosomes can be distinctly studied at metaphase stage of cell division because at this stage chromosomes are in highly condensed ... constriction (centromere), Secondary constriction (nucleolar organizer), satellite, telomere, and chromosmere.

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)

Morphology of Chromosomes can be best studied at (1) Interphase (2) Prophase (3) Metaphase (4) Zygotene

Description : Morphology of Chromosomes can be best studied at (1) Interphase (2) Prophase (3) Metaphase (4) Zygotene

Last Answer : Metaphase

A woman who lived in Germany during World War II wanted to cross the German/Swiss border in order to escape Nazi pursuers. The bridge which she is to cross is a half mile across, over a large canyon. Every three minutes a guard comes out of his bunker and checks if anyone is on the bridge. If a person is caught trying to escape German side to the Swiss side they are shot. If caught crossing the other direction without papers they are sent back. She knows that it takes at least five minutes to cross the bridge, in which time the guard will see her crossing and shoot her. How does she get across? -Riddles

Description : A woman who lived in Germany during World War II wanted to cross the German/Swiss border in order to escape Nazi pursuers. The bridge which she is to cross is a half mile across, over a large canyon. ... , in which time the guard will see her crossing and shoot her. How does she get across? -Riddles

Last Answer : She waits until the guard is inside his hut, then walks halfway across before starting to walk back. The guard, seing she has no papers, sends her 'back'.

Assertion : Crossing over take place during pachytene stage. Reason : It is a process of interchange of chromatid material between non sister chromati

Description : Assertion : Crossing over take place during pachytene stage. Reason : It is a process of interchange of chromatid material between non sister chromati

Last Answer : Assertion : Crossing over take place during pachytene stage. Reason : It is a process of interchange of ... D. If both Assertion & Reason are false.

What would be the results if crossing over did not happen during meiosis in humans?

Description : What would be the results if crossing over did not happen during meiosis in humans?

Last Answer : There would be less genetic variation in humans

What happens during crossing over biology?

Description : What happens during crossing over biology?

Last Answer : Need answer

Crossing over and recombination occur during

Description : Crossing over and recombination occur during

Last Answer : Ans. Meiosis division

Which of the following options gives the correct sequence of events during mitosis ? (a) Condensation → Nuclear membrane disassembly → Arrangement at equator → Centromere division → Segregation → Telophase (b) Condensation → Crossing over → Nuclear membrane disassembly → Segregation → Telophase (c) Condensation → Arrangement at equator → Centromere division → Segregation → Telophase (d) Condensation → Nuclear membrane disassembly → Crossing over → Segregation → Telophase

Description : Which of the following options gives the correct sequence of events during mitosis ? (a) Condensation → Nuclear membrane disassembly → Arrangement at equator → Centromere division → Segregation ... (d) Condensation → Nuclear membrane disassembly → Crossing over → Segregation → Telophase

Last Answer : (a) Condensation → Nuclear membrane disassembly → Arrangement at equator → Centromere division → Segregation → Telophase

What occurs when a object travels in a curved path?

Description : What occurs when a object travels in a curved path?

Last Answer : Acceleration

What occurs when a object travels in a curved path?

Description : What occurs when a object travels in a curved path?

Last Answer : Acceleration

What are the rules for ghosts moving on (crossing over)?

Description : What are the rules for ghosts moving on (crossing over)?

Last Answer : answer:Casper has lots of friends. But cartoon friendly ghosts don't follow ghost rules. Usually the ghost needs to resolve what ever led to their untimely death. That's not always possible, ... murderer dies from something unrelated. The ghost never gets resolved and just hangs out for eternity.

Do you watch the various Law and Order programs? Did you know that Mariska is crossing over to the Los Angeles one?

Description : Do you watch the various Law and Order programs? Did you know that Mariska is crossing over to the Los Angeles one?

Last Answer : I love Law&Order and no I didn’t know that! They can’t break up Benson and Stabler!!! Keep me posted. I have to call hubby and tell him this news!

Have you ever stopped yourself from crossing over to the darkside,is there a thin line between being a fan and being pityful ?

Description : Have you ever stopped yourself from crossing over to the darkside,is there a thin line between being a fan and being pityful ?

Last Answer : Yep. Many times they are fun, either to mock or learn from. Either way. Look at the people who speak Klingon (and look at the published Klingon dictionaries.)

What is crossing over? -Biology

Description : What is crossing over? -Biology

Last Answer : answer:

why crossing over cannot occur of linked genes -Biology

Description : why crossing over cannot occur of linked genes -Biology

Last Answer : answer:

why crossing over cannot occur of linked genes -Biology

Description : why crossing over cannot occur of linked genes -Biology

Last Answer : answer:

In which type of cell divisions does crossing over of chromosomes takes place? -Do You Know?

Description : In which type of cell divisions does crossing over of chromosomes takes place? -Do You Know?

Last Answer : answer:

What is crossing over ?

Description : What is crossing over ?

Last Answer : Answer : The part that exchanges between two non-sister chromatids of a pair of homologous chromosomes is called crossing over.

Assertion : Meiosis produces four genetically dissimilar cells. Reason : Crossing over or gene exchange takes place in meiosis.

Description : Assertion : Meiosis produces four genetically dissimilar cells. Reason : Crossing over or gene exchange takes place in meiosis.

Last Answer : Assertion : Meiosis produces four genetically dissimilar cells. Reason : Crossing over or gene exchange ... . If both Assertion & Reason are false.

Arrange the following events of meiosis in the correct sequence - A. Terminalisation of chiasmata B. Crossing over C. Synapsis D. Disjunction of chrom

Description : Arrange the following events of meiosis in the correct sequence - A. Terminalisation of chiasmata B. Crossing over C. Synapsis D. Disjunction of chrom

Last Answer : Arrange the following events of meiosis in the correct sequence - A. Terminalisation of chiasmata ... ` C. `CtoBtoDtoEtoA` D. `CtoBtoEtoAtoD`

Arrange the following events of meiosis in correct sequence : (a) Crossing over (b) Synapsis ( c ) Terminalisation of chaismata (d) Disappearance of n

Description : Arrange the following events of meiosis in correct sequence : (a) Crossing over (b) Synapsis ( c ) Terminalisation of chaismata (d) Disappearance of n

Last Answer : Arrange the following events of meiosis in correct sequence : (a) Crossing over (b) Synapsis ( c ) Terminalisation of ... . (a), (b), ( c ), (d)

Crossing over takes place in :-

Description : Crossing over takes place in :-

Last Answer : Crossing over takes place in :- A. Zygotene B. Pachytene C. Diplotene D. Diakinesis

What is crossing over point called?

Description : What is crossing over point called?

Last Answer : Meiosis

In prophase I of meiosis crossing over results in?

Description : In prophase I of meiosis crossing over results in?

Last Answer : Genetic Recombination

How is the process of crossing over and independent assortment alike?

Description : How is the process of crossing over and independent assortment alike?

Last Answer : Feel Free to Answer