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Year 10 Biology > SB3 > Flashcards

SB3 Flashcards

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1
Q

what is Interphase

A

The stage where the cell prefers for cell devision. The DNA is replicated during this time

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2
Q

What is a Diploid cell

A

A cell or nucleus with both sets of chromosomes

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3
Q

What is a Haploid cell

A

A cell or nucleus with only one of each pair of chromosomes

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4
Q

what is a Zygote

A

A fertilised egg cell

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5
Q

what is a Embryo

A

A ball of cells produces be the cell devision of a zygote

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6
Q

What is Mitosis 1/Devision 1

A

Homologue pairs separate during Mitosis 1

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7
Q

what is Mitosis 2/Devision 2

A

Sister chromatids separate

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8
Q

what is a Homologous pairs

A

These are chromosomes pairs one from each parent

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9
Q

What is a chromatid

A

A chromatid is one of the 46 chromosomes, however in mitosis and meiosis when the chromatid replicates the two joined chromatids are called sisters chromatids

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10
Q

What is a gene

A

A gene is a section of the long strand of DNA found in a chromosome

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11
Q

What is a genome

A

All of the DNA of an organism

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12
Q

What is a allele

A

A different version of a gene

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13
Q

What is Mutation

A

Mutation is a change to a gene caused by a mistake in cell devision

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14
Q

Can a sperm cell only carry a Y chromosome

A

No there is a %50 chance that it will be a X chromosome

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15
Q

What sex chromosomes do men and women have

A

Women have xx and men have xy

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16
Q

What is variation

A

Variation is the difference in the characteristics of a organism. Caused by mutations during cell devision

17
Q

what is a Genotype

A

The alleles in a organismic

18
Q

What is a gamete

A

A sex cell

19
Q

What is a phenotypes

A

The allele the organism looks and acts like

20
Q

If you have the Y,y alleles what are is your phenotype and genotype

A

Genotype Y and y

Phenotype Y

21
Q

What is a precipitate

A

A insoluble substance formed when two soluble substances react

22
Q

What are the four DNA bases

A

Adenine, thymine, cytosine and guanine

23
Q

What are complementary bases

A

The bases that go together AT CG

24
Q

What is in one nucleotide

A

A base is attached to a sugar(deoxyribose) and the sugar is attached to a phosphate groop

25
Q

What happens in transcription

A

RNA polymerase attaches to the DNA in front of a gene. The enzyme separates the DNA strand. The enzyme then moves along the template strand, adding complementary RNA nucleotides. The nucleotides link to form one strand of messenger RNA

26
Q

What is are the F1 offspring

A

The offspring of the first generation

Year 10 Biology (4 decks)

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