1n or 2n?

• Biologie
• Middelbare school
• vwo
• Leerjaar 4

A
1n or 2n?

1. 1n
2. 2n

B
1n or 2n?

1. 1n
2. 2n

C
1n or 2n?

1. 1n
2. 2n

D
1n or 2n?

1. 1n
2. 2n

E
1n or 2n?

1. 1n
2. 2n

F
1n or 2n?

1. 1n
2. 2n

G
1n or 2n?

1. 1n
2. 2n

Haploid:
1n or 2n?

1. 1n
2. 2n

Diploid
1n or 2n?

1. 1n
2. 2n

Sperm cell
1n or 2n?

1. 1n
2. 2n

Zygote
1n or 2n?

1. 1n
2. 2n

Cell of the uterus
1n or 2n?

1. 1n
2. 2n

Cell of a dog containing 39 chromosomes
1n or 2n?

1. 1n
2. 2n

Cell has homologous pairs
1n of 2n?

1. 1n
2. 2n

end

Luteinizing Hormone (LH) is produced by the

1. Growing follicle
2. Anterior Pituitary
3. Posterior Pituitary
4. Corpus luteum

The effects of estrogen and follicle stimulating hormone (FSH) are an example of a

1. Negative feedback loop
2. Positive feedback loop
3. Cooperation hormones
4. Male hormones

Ovulation occurs usuallly at day... of the menstrual cycle initiated by a .... peak

1. 14,LH
2. 14, progesterone
3. 7, progesterone
4. 7, LH

A follicle contains:

1. Follicle cells
2. An egg cell
3. Follicle cells and an Egg cell
4. A sperm cell and an egg cell

Meisos 2 in women takes place in the ... if the cell gets fertilized

1. Ovary
2. Corpus luteum
3. Oviduct
4. Uterus

The corpus luteum is mainly responsible for the production of

1. Estrogen
2. Progesterone
3. Testosterone
4. GnRH

Progesterone inhibits ...... and stimulates......

1. LH, preparation uterus
2. FSH, LH
3. LH, Estrogen
4. preparation uterus, LH

Which hormone is used to indicate a pregnancy?

1. Estrogen
2. Progesterone
3. HcG (Human chorionic gonadotropin)
4. GnRH (gonadotropin releasing hormone)

Which structure produces the hormone: HcG (human chorionic gonadotropin) ?

1. Inner cell mass
2. Morula
3. Placenta
4. Ovary

Which structure produces Estrogen?

1. Fertilized egg in the oviduct
2. Growing follicle in the ovary
3. The corpus luteum after ovulation
4. Smooth muscle in the uterus

In which stage of the cell cycle DNA replication takes place?

1. Interphase
2. Anaphase
3. Prophase
4. Metaphase

How many chromatids are present in the metaphase of mitosis?

1. 46
2. 23
3. 92
4. 100

Place in the right order

1. 1234
2. 2143
3. 1243
4. 2134

In which phase does every chromatid become a separate chromosome?

1. Telophase
2. Prophase
3. Anaphase
4. Interphase

What is the structure called that connects the chromatids?

1. Centriole
2. Centromere
3. Controsome

In which phase of the cell cycle organelles are formed?

1. M phase
2. G1 Phase
3. G2 Phase
4. S phase

which best describes the amount of chromosomes during the cell cycle?

1. 2n -> 2n+2n
2. 2n -> n + n
3. n -> n+n
4. n -> 2n +2n

In which phase do chromosomes line up at the equator?

1. Anaphase
2. Telophase
3. Prophase
4. Metaphase

C is a process happening during.. in ..

1. Anaphase / Meiosis 1
2. Anaphase / Mitosis
3. Metaphase / Meiosis 1
4. Metaphase / Mitosis

At the end of mitosis you end up with:

1. 2 genetically identical daughter cells
2. 4 genetically identical daughter cells
3. 2 genetically different daughter cells
4. 4 genetically different daughter cells

Mitosis has only 1 division stage

1. true
2. false

Cell division occurs in the following order: Prophase, Metaphase, Anaphase, Telophase

1. true
2. false

In anaphase of meiosis 2 the number of chromosomes is haploid

1. true
2. false

Crossing over takes place during:

1. Meiosis 1 / Prophase
2. Meiosis 2 / Prophase
3. Meiosis 2 / Anaphase
4. Meiosis 2 / Metaphase

Crossing over can only occur between homologous pairs

1. true
2. false

1. prophase
2. metaphase
3. anaphase
4. telophase

Meiosis is a cycle

1. true
2. false

Each homologous pair contain similar genes but different variants

1. true
2. false

Which of the following is not a part of the male reproductive system

1. Penis
2. Testes
3. Uterus

Which of the following is not a part of the female reproductive system?

1. Ovary
2. Vagina
3. Sperm duct

Somatic cells reproduce by ........while sex cells reproduce by........

1. Meiosis ; Mitosis
2. Mitosis ; Meiosis 1
3. Mitosis ; Meiosis
4. Meiosis 1 ; Meiosis 2

Which of the following statements about human reproduction is true?

1. Mitosis in males is also known as spermatogenesis
2. Sperm and ova are zygotes
3. Oogenesis takes place in the ovaries of females

Which of the following statements is true about meiosis in humans?

1. Sperm and ova are not identical to the parent cells that produced them.
2. Females produce far more gametes than do males.
3. The process begins in males and females at puberty.

primary oocytes are:

1. ova that have not yet completed the oögenesis process
2. the locations on chromosomes where ova are produced
3. the male equivalent of ova

Which of the following statements is true in humans?

1. Mitosis produces cells that have a haploid number of chromosomes.
2. Meiosis produces cells that have a diploid number of chromosomes.
3. Meiosis produces cells that have a haploid number of chromosomes.

Human gametes normally have _____ chromosomes.

1. 23
2. 46
3. A diploid number of

As a result of "fertilization", which of the following normally occurs?

1. A gamete is created.
2. A single sperm and ovum combine their genetic material to create offspring with the same number of chromosomes as the parents.
3. The final phase of spermatogenesis is begun.