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Biology > Sexual Reproduction > Flashcards

Sexual Reproduction Flashcards

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0
Q

Sexual reproduction

A

Egg fertilized by a sperm cell and a new unique organisms made

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1
Q

Asexual reproduction

A

Reproduction resulting in offspring with exact copy of parent. ONLY one parent

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2
Q

What are somatic cells?

A

Body cells that make up most of body’s tissues and organs

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3
Q

How many chromosomes do somatic cells have?

A

46

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4
Q

DNA in what cells are not passed to offspring?

A

Somatic cells

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5
Q

What are gametes cells?

A

Sex cells that is a sperm cell and egg cell

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6
Q

How many chromosomes do human gametes have?

A

23

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7
Q

DNA in what cells are passed to offspring

A

Sex cells

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8
Q

What is former when a sperm fertilizes an egg?

A

Zygote

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9
Q

What is a diploid?

A

Cell that have 2 copies of each chromosome (2n) Di=2 “Diploid Double” all somatic cells diploid

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10
Q

What is a haploid cell?

A

Cell that has only one copy of a chromosome (n) haploid half. All gametes are haploid

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11
Q

What is a karyotype?

A

Map of 47 chromosomes

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12
Q

Autosomes

A

Chromosomes that do NOT code for sex characteristics pairs 1-22

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13
Q

Sex chromosomes

A

23rd pair determines sex

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14
Q

What is the sex chromosome pair for males?

A

Xy

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15
Q

What is the sex chromosomes pAir for females?

A

Xx

16
Q

What is a homologous chromosome?

A

Pair of chromosome (2 sets of sister chromatids) 1 maternal and 1 paternal. Same size and type of genes but NOT copies

17
Q

What type of chromosomes are divided in meiosis 1?

A

Homologous chromosomes

18
Q

Sister chromatids

A

Two copies of chromosomes held together at the centromere

19
Q

What type of chromosomes are divided in meiosis 2?

A

Sister chromatids

Biology (12 decks)

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