Chapter 3 Lectures Flashcards

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1
Q

How many chromosomes does a haploid have?

A

23

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2
Q

fertilization

A

egg fuses with sperm and creates diploid zygote

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3
Q

how do plants reproduce

A

pollen double fertiliizes 1 egg which makes 2 zygote

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4
Q

Chromosomes

A

DNA and Protein highly condensed DNA

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5
Q

Centromere

A

connects 2 sister chromitids

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6
Q

Name the types of chromosomes and where p arm vs q arm is?

A

A. telocentric
B. Acrocentric
C. Subcentric
D. Metacentric
P arm is the top which is shorter than q
Q arm is the bottom

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7
Q

Which chromosome in humans are what?

A

1-22 autosomal
23 sex

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8
Q

What percentage does a cell spend in each part of Cell cycle

A

G1 25 %
S 40%
G2 25%
Mitosis 10%

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9
Q

Where do all cells in the human come from

A

zygote cell

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10
Q

What does bivalent mean

A

2 sister chromatids on 1 chromosome

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11
Q

Meisosis

A

reduction cell division but DNA is replicated before meiosis I

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12
Q

Meiosis split

A

2n 1 cell then meiosis I
n 2 cells then meiosis 2
n 4 cells

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13
Q

What separates during meiosis I and meiosis II

A

Homologous chromosomes seperate during meiosis I
2 sister chromids separate during meiosis II

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14
Q

Draw out the process of mitosis

A

Look at Genetics study sheet

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15
Q

Draw out meiosis

A

Look at genetics study sheet

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