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EaL Science > Perpetuation Of Life > Flashcards

Perpetuation Of Life Flashcards

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Biology 101 flashcards
1
Q

What is the primary mechanism by which life is perpetuated?

A

Reproduction

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2
Q

True or False: All organisms reproduce sexually.

A

False

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3
Q

Fill in the blank: The process by which organisms produce offspring is called __________.

A

reproduction

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4
Q

What are the two main types of reproduction?

A

Sexual and asexual reproduction

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5
Q

Multiple choice: Which of the following is a form of asexual reproduction? A) Binary fission B) Pollination C) Fertilization

A

A) Binary fission

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6
Q

What role does DNA play in the perpetuation of life?

A

DNA carries genetic information necessary for reproduction and development.

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7
Q

True or False: Genetic variation is essential for the evolution of species.

A

True

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8
Q

What is the term for the genetic makeup of an organism?

A

Genotype

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9
Q

Multiple choice: Which process increases genetic diversity? A) Asexual reproduction B) Sexual reproduction C) Cloning

A

B) Sexual reproduction

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10
Q

Fill in the blank: The study of heredity and the variation of inherited characteristics is called __________.

A

genetics

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11
Q

A process where organisms better adapted to their environment tend to survive and produce more offspring.

A

Natural selection

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12
Q

True or False: All mutations are harmful to an organism.

A

False

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13
Q

What is the main advantage of sexual reproduction?

A

It increases genetic diversity among offspring.

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14
Q

Multiple choice: In plants, which structure is primarily responsible for reproduction? A) Leaves B) Roots C) Flowers

A

C) Flowers

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15
Q

Fill in the blank: The process by which plants produce seeds is known as __________.

A

pollination

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16
Q

Two identical daughter cells

A

Mitosis

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17
Q

True or False: Asexual reproduction does not involve the fusion of gametes.

A

True

18
Q

A reproductive cell that unites with another to form a new organism.

A

Gamete

19
Q

Multiple choice: Which of the following is NOT a type of asexual reproduction? A) Budding B) Fragmentation C) Cross-fertilization

A

C) Cross-fertilization

20
Q

Fill in the blank: The unit of heredity that is transferred from a parent to offspring is called a __________.

A

gene

21
Q

What is the significance of the fossil record in understanding the perpetuation of life?

A

It provides evidence of past life forms and their evolution over time.

22
Q

True or False: Extinction has no impact on the perpetuation of life.

A

False

23
Q

Four genetically diverse gametes/non-identical daughter cells

A

Meiosis

24
Q

Multiple choice: Which of the following is a form of reproductive isolation? A) Temporal isolation B) Behavioral isolation C) Both A and B

A

C) Both A and B

25
Q

Fill in the blank: The process by which a single organism can reproduce without the involvement of another is known as __________ reproduction.

A

asexual

26
Q

What is the primary advantage of genetic variation in a population?

A

It increases the chances of survival and adaptation to changing environments.

27
Q

Refers to the parent organism breaking into fragments and each fragment is capable of developing into a new organism.

A

Fragmentation

28
Q

_________ is a type of asexual reproduction wherein cells divides to produced two identical cells. Each of these two cells has the potential to grow to the size of the original cells.

A

Binary fission

29
Q

Condensation of DNA;
Nucleus disappears

A

Prophase

30
Q

Alignment of chromosomes in the middle of the cell.

A

Metaphase

31
Q

The chromatids would go to each post of the cell

A

Anaphase

32
Q

Cell will began to split nucleus will form for each cell

A

Telophase

33
Q

Cytoplasm of each cell will separate

A

Cytokinesis

34
Q

Daughter cells/individual is identical to the parent

A

Asexual

35
Q

_______ reproduction refers to the formation of an outgrowth (or bud) from an organism.

A

Budding

36
Q

The offspring develops from a female gamete even without prior or fertilization by male gamete.

A

Parthenogenesis

37
Q

Occurs when one in which the egg cells produced by mitosis do not undergo meiosis.

A

Apomictic parthenogenesis

38
Q

The reproductive cell go through meiosis.

A

Automictic parthenogenesis

39
Q

How many chromosomes are there?

A

23 pairs

40
Q

How many chromatids are there?

A

46

41
Q

If there are two chromatids but they’re not combined to each other what is it called?

A

Sister chromatids

EaL Science (7 decks)

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