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Bio Chapter 14 > Deck 1 (slides 1-6) > Flashcards

Deck 1 (slides 1-6) Flashcards

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Biology 101 flashcards
1
Q

To analyze human chromosomes, scientists photograph cells in _________ (when chromosomes are _________).

A

Mitosis, visible

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2
Q

Next, they cut out the chromosomes from the photograph and group them together in _______.

A

Pairs

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3
Q

A picture of chromosomes in pairs is called a __________.

A

Karyotype

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4
Q

A karyotype allows geneticists to determine if there are any extra or missing __________.

A

Chromosomes

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5
Q

A karyotype allows geneticists to determine if there are any _________ chromosomes.

A

Broken

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6
Q

A karyotype allows geneticists to determine the ______ of the person.

A

Sex

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7
Q

Humans have ____ chromosomes, ____ pairs.

A

46,23

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8
Q

The 23rd pair of chromosomes is the ______ chromosomes.

A

Sex

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9
Q

There are 2 types of sex chromosomes, ____ and ____.

A

X, Y

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10
Q

The ____ chromosomes is large, the ___ chromosomes is small.

A

X, Y

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11
Q

A person with 2 X chromosomes (XX) is a ______.

A

Girl

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12
Q

A person with an X and a Y chromosome (XY) is a ______.

A

Boy

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13
Q

The other 22 pairs of chromosomes are called __________ (these DO NOT determine the sex of a human).

A

Autosomes

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14
Q

The chance of having a boy or girl baby is _______.

A

50/50

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15
Q

All human egg cells carry a single ____ chromosome (22, X).

A

X

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16
Q

Half of all sperm cells carry an ____ chromosome (22, X) and half carry a ____ chromosome (22,Y).

A

X, Y

17
Q

Studying human inheritance of traits is ________ than studying inheritance in peas or flies.

A

Harder

18
Q

This is because humans have ______ offspring and longer __________ times between offspring.

A

Less, generational

19
Q

To study the inheritance of traits in humans, scientists usually study _______ passes over many generations in a _________.

A

Traits, family

20
Q

To study hereditary traits in humans, scientists use a chart called a _________.

A

Pedigree

Bio Chapter 14 (9 decks)

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