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SCIENCE GRADE 9 Q1 > SEX CHROMOSOME , SEX DETERMINATION > Flashcards

SEX CHROMOSOME , SEX DETERMINATION Flashcards

1
Q

is an individual’s complete set of chromosomes.

A

KAROTYPE

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2
Q

Is a type of chromosome involved in sex determination.

A

SEX CHROMOSOME

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3
Q

Humans and most other mammals have how many sex chromosomes?

A

TWO

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4
Q

females have how many chromosomes?

A

two X chromosomes

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5
Q

males have how many chromosomes?

A

one X chromosome and one Y chromosome

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6
Q

The sex of an individual is determined by the ___________________contributed to the zygote by the sperm and the egg.

A

sex chromosomes

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7
Q

These are the female sex cells

A

egg cells

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8
Q

male gametes

A

sperm cells

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9
Q

process involved in which sperm and egg cell unites to form a zygote

A

fertilization

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10
Q

A threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.

A

chromosome

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11
Q

humans have how many chromosomes?

A

46, 23 pairs of chromosomes

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12
Q

first 22 pairs are called

A

AUTOSOMES

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13
Q

carries the genetic coding for everything except sex determination

A

AUTOSOMES

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14
Q

last pair of chromosomes are called

A

SEX CHROMOSOMES

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15
Q

are numbered chromosomes that contain genes for anything that does not relate to sex determination

A

AUTOSOMES

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16
Q

is a type of chromosome involved in sex determination

A

SEX CHROMOSOMES

17
Q

What type of cell division is responsible for the production of our gametes or sex cells?

A

MEIOSIS

18
Q

is a specialized type of cell division that reduces the chromosome number by half, creating four haploid cells, each genetically distinct from the parent cell that gave rise to them.

A

MEIOSIS

19
Q

when an egg is fertilized by a sperm with a Y chromosome, the offspring is?

A

MALE

20
Q

when an egg is fertilized by a sperm with a X chromosome, the offspring is?

A

FEMALE

21
Q

sex is determined by ?

A

FATHER

22
Q

is a condition in which individuals with XY chromosomes have a genetic mutation that makes their bodies insensitive to androgens (male sex hormones). As a result, they may develop external female genitalia and often identify as females, despite having XY chromosomes.

A

ANDROGEN INSENSITIVITY SYNDROME

23
Q

are a pair of chromosomes that determine an individual’s biological sex. In humans, there are two types of sex chromosomes: X and Y. Females typically have two X chromosomes (XX), while males have one X and one Y chromosome (XY).

A

SEX CHROMOSOMES

24
Q

An individual’s biological sex is determined by the

A

COMBINATION OF SEX CHROMOSOMES THEY INHERIT FROM THEIR PARENTS

25
Q
  1. What is the function of sex chromosomes in determining biological sex?

a. Determining hair color

b. Determining eye color

c. Determining gender

d. Determining height

A

c. determining gender

26
Q
  1. In a typical human karyotype, males have:

a. XX chromosomes

b. YY chromosomes

c. XY chromosomes

d. ZZ chromosomes

A

c. XY chromosomes

27
Q
  1. Which of the following combinations of sex chromosomes would result in a female individual?

a. XX b. XY
c. YY d. ZZ

A

a. XX

28
Q
  1. What is the significance of genetic diversity in the context of sex determination?

a. It has no impact on genetic diversity.

b. It contributes to the genetic diversity of a population.

c. It only affects individuals, not populations.

d. Genetic diversity is unrelated to sex determination.

A

b. It contributes to the genetic diversity of a population.

29
Q
  1. Why is it important to respect individuals with diverse gender identities and expressions?

a. There is no need to respect such individuals.

b. It promotes inclusivity, equality, and understanding.

c. It doesn’t affect society.

d. It confuses people.

A

b. It promotes inclusivity, equality, and understanding.

SCIENCE GRADE 9 Q1 (10 decks)

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