Terms related to inheritance Flashcards

1
Q

What is the definition of monohybrid inheritance?

Monohybrid inheritance involves inheritance of _______ characteristics and __________ traits controlled by a gene.

A

Monohybrid inheritance involves inheritance of one characteristics and contrasting traits controlled by a gene.

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2
Q

Genes and alleles

Gene is a ___________ of inheritance which consist of__________ segment

A

Gene is a basic unit of inheritance which consist of DNA.

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3
Q

Gene and alleles

Allele is an __________ form of ______ for a trait.

A

Allele is an alternative form of gene for a trait.

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4
Q

Characteristics and traits.

Characteristics are__________

such as eye colors, blood type and hair color.

A

Heritable features

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5
Q

Traits are _________ of a ________ characteristic.

A

Variation; specific

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6
Q

What is the term use for observable characteristics?

A

Phenotype

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7
Q

What is the term use for genetic composition of an organism that cannot be seen?

A

Genotype

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8
Q

What is a dominant alleles and recessive alleles?

A

Dominant alleles shows its characteristics and suppresses the effects of recessive alleles

Recessive allele only shows its trait when both alleles are recessive alleles. Effects of recessive alleles is suppressed by the dominant alleles

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9
Q

What is the the difference between homozygote and heterozygote?

A

Both alleles at the loci of a pair of homologous chromosomes are the same

Heterozygote are alleles at loci of homologous chromosomes are different

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10
Q

Dominant trait is expressed when _______ alleles are ___________ or one _______ allele is paired to one________ allele.

A

Both alleles are dominant or one dominant allele is paired to one recessive allele

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11
Q

Recessive trait is expressed if a pair of _______ are paired together.

A

pair of recessive alleles

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12
Q

What is the definition of purebreeds?

A

Individuals that carry 2 identical alleles for a trait

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13
Q

What is the definition of hybrid?

Hybrid is the product of mating between 2 _________ varieties

A

Purebreed

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14
Q

Parential generations refers to the________ generation of two individuals which are mated to predict and analyse the ________ of their offspring.

Filial generation refers to the_________ generation as a result of mating between individuals of __________ parental generation.

A

first generation ; genotype

Succeesive; purebreed

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15
Q

State the definition of Mendel’s First Law. ( Law of Segregation)

A

Characteristics of an organism controlled by a pair of alleles and only one of the allelic pair is inherited by the gametes.

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16
Q

Summary of Mendel monohybrid experiment.

1) Characteristic inherited is determine by a _______
2) A trait is controlled by a_________
3) A pair of alleles seperate ______ during formation of gametes
4) During fertilisation, zygote posses 2 alleles for a specific characteristic
5) Fertilisation is random. Genotypic combination which is homozygous dominant shows a __________
Heterozygous genotype( combination of ____________ and __________) shows the ________ trait.

A

1) gene
2) Allele
3) randomly
5) Dominant trait; recessive allele and dominant allele; dominant trait

17
Q

What is the definition of locus?

A

Locus is the specific location of a gene in a chromosome.