Gene flow and new species

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In this video you will observe the relationship between genetic variation, gene flow and the generation of new species.

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9º - Secundaria

genetics

genes

dna

mutations

gene flow

Edad recomendada: 13 años

34 veces realizada

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Teacher Cata

Colombia

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Gene flow and new speciesVersión en línea In this video you will observe the relationship between genetic variation, gene flow and the generation of new species. por Teacher Cata 1 What do these letters stand for? a Adenine, guanine, cytosine and thymine b Adenine, guanine, cytosine and uracil c Uracil, guanine, adenine and cytosine d Thymine, adenine, guanine and cytosine 2 What is(are) the process(es) by which genes are transformed into proteins? a Replication b Replication and transcription c Transcription and translation d Translation 3 What does DNA stand for? a Detoxyribonucleic acid b Deoxyribonucleus acid c Deoxyribonucleic anti d Deoxyribunocleic acid 4 What is the length of DNA in a single human cell? a Enough to go to the sun back and forth 70 times b 2 - 3 meters c 5 - 6 meters d Enough to go to the sun back and forth 17 times 5 What is the name of a micrograph showing the arrangement of chromosomes in an organism? a Chromoarrangement b Karyotype c Chromotype d Nucleotide 6 Why is it said that the number of chromosomes is not directly related to the complexity of the organism? a Because dolphins have more chromosomes than us b Because a dove has more chromosomes than a dolphin, so a dove is more intelligent c Because some unicellular organisms have more chromosomes than us d Because dolphins have more chromosomes than unicellular organisms 7 These genetic variations are called: a Mutations b Adaptations c Genetic changes d DNA changes 8 A factor that causes a mutation could be: a Mistakes during DNA translation b Diseases c Mutations d Mistakes during DNA replication 9 Alleles are: a Different forms of the same trait b Different genes for the eye color c Different forms of the same gene d Always two per trait 10 Each individual of an offspring is genetically unique because: a It has a lot of alleles of the same gene recombining with each other b It comes from fertilization of sperm and egg c It suffers some mutations during fertilization d Sperm and egg have a lot of genetic recombinations before fertilization 11 What does "reshuffling the deck" mean? a Genetic recombination b Fertilization c Punnet squares d This is not the answer..! 12 Gene flow refers to: a Genes that flow around the cell b Individuals of the same species that interbreed with ones from a different place c Individuals of 2 species that interbreed with ones from another place d Individuals of the same species that don't interbreed 13 There are species that are very similar to others and live separated by a barrier, but still are different species. They are so similar because: a They have gene flow with each other b They had gene flow once, but now they are separated c They have never had gene flow d They share 90% of their genetic information 14 An example of divergence is: a Two different species that were only one, a long time ago b Two species that are different from each other c Two populations that become a new species d A species that was two different ones, a long time ago 15 Natural selection is caused by: a Biodiversity b Evolution c Divergence d Random mutations Explanation 1 Remember that uracil is present only in RNA. 2 Remember that uracil is present only in RNA. 3 Remember that uracil is present only in RNA. 4 Remember that uracil is present only in RNA. 5 Remember that uracil is present only in RNA. 6 Remember that uracil is present only in RNA. 7 Remember that uracil is present only in RNA. 8 Remember that uracil is present only in RNA. 9 Remember that uracil is present only in RNA. 10 Remember that uracil is present only in RNA. 11 Remember that uracil is present only in RNA. 12 Remember that uracil is present only in RNA. 13 Remember that uracil is present only in RNA. 14 Remember that uracil is present only in RNA. 15 Remember that uracil is present only in RNA.

Gene flow and new speciesVersión en línea

In this video you will observe the relationship between genetic variation, gene flow and the generation of new species.

por Teacher Cata

What do these letters stand for?

Adenine, guanine, cytosine and thymine

Adenine, guanine, cytosine and uracil

Uracil, guanine, adenine and cytosine

Thymine, adenine, guanine and cytosine

What is(are) the process(es) by which genes are transformed into proteins?

Replication

Replication and transcription

Transcription and translation

Translation

What does DNA stand for?

Detoxyribonucleic acid

Deoxyribonucleus acid

Deoxyribonucleic anti

Deoxyribunocleic acid

What is the length of DNA in a single human cell?

Enough to go to the sun back and forth 70 times

2 - 3 meters

5 - 6 meters

Enough to go to the sun back and forth 17 times

What is the name of a micrograph showing the arrangement of chromosomes in an organism?

Chromoarrangement

Karyotype

Chromotype

Nucleotide

Why is it said that the number of chromosomes is not directly related to the complexity of the organism?

Because dolphins have more chromosomes than us

Because a dove has more chromosomes than a dolphin, so a dove is more intelligent

Because some unicellular organisms have more chromosomes than us

Because dolphins have more chromosomes than unicellular organisms

These genetic variations are called:

Mutations

Adaptations

Genetic changes

DNA changes

A factor that causes a mutation could be:

Mistakes during DNA translation

Diseases

Mutations

Mistakes during DNA replication

Alleles are:

Different forms of the same trait

Different genes for the eye color

Different forms of the same gene

Always two per trait

Each individual of an offspring is genetically unique because:

It has a lot of alleles of the same gene recombining with each other

It comes from fertilization of sperm and egg

It suffers some mutations during fertilization

Sperm and egg have a lot of genetic recombinations before fertilization

What does "reshuffling the deck" mean?

Genetic recombination

Fertilization

Punnet squares

This is not the answer..!

Gene flow refers to:

Genes that flow around the cell

Individuals of the same species that interbreed with ones from a different place

Individuals of 2 species that interbreed with ones from another place

Individuals of the same species that don't interbreed

There are species that are very similar to others and live separated by a barrier, but still are different species. They are so similar because:

They have gene flow with each other

They had gene flow once, but now they are separated

They have never had gene flow

They share 90% of their genetic information

An example of divergence is:

Two different species that were only one, a long time ago

Two species that are different from each other

Two populations that become a new species

A species that was two different ones, a long time ago

Natural selection is caused by:

Biodiversity

Evolution

Divergence

Random mutations

Explanation

Remember that uracil is present only in RNA.

Gene flow and new species

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Gene flow and new speciesVersión en línea

por Teacher Cata

What do these letters stand for?

What is(are) the process(es) by which genes are transformed into proteins?

What does DNA stand for?

What is the length of DNA in a single human cell?

What is the name of a micrograph showing the arrangement of chromosomes in an organism?

Why is it said that the number of chromosomes is not directly related to the complexity of the organism?

These genetic variations are called:

A factor that causes a mutation could be:

Alleles are:

Each individual of an offspring is genetically unique because:

What does "reshuffling the deck" mean?

Gene flow refers to:

There are species that are very similar to others and live separated by a barrier, but still are different species. They are so similar because:

An example of divergence is:

Natural selection is caused by:

Explanation