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1

The nuclei of a normal human cells carry ________ pairs of chromosomes for a total of _______.

23, 46

2

The kind of nuclear division that results in 2 daughter cells containing the same # of chromosomes as the original parent.

Mitosis

3

The kind of nuclear division that generates sperm or egg cells containing 1/2 the # of chromosomes found in other cells within the same organism.

Meiosis

4

Gametes and other cells that carry only a single set of chromosomes are called ______.

Haploid
n

5

Zygotes and other cells that carry two matching sets of chromosomes. Maternal and paternal copies.

Diploid
2n

6

Individual chromosomes have duplicated. Each chromosome consisting of 2 identical halves at metaphase. Exact duplicates.

Sister Chromatids

7

Can be metacentric or acrocentric.

Centromere

8

Chromosomes that match in size, shape, and Banding pattern. They contain the same genes, though some genes may contain different alleles.

Homologous chromosomes or homologs

9

Chromosomes are carriers of genes

Chromosomal theory of inheritance

10

Chromosomes which carry completely different sets of genetic information

Nonhomologous chromosomes

11

In diploid organisms one ________ of a ______ is of maternal origin and the other paternal.

Homolog, pair

12

Klienfelter syndrome is when a male is _______.

XXY

13

Turner syndrome is when a female is ____.

XO

14

SRY

Sex determining region of Y, 110 protein coding genes.

15

The existence of XX males and XY females depending on where the part of SRY is attached (to X or Y).

Sex reversal

16

Gender giving rise to two different types of gametes, two different sex chromosomes

Heterogametic sex

17

One or 2 dark areas of chromatin that play a key role in the manufacture of ribosomes

Nucleoli

18

Repeating pattern of cell growth (interphase, (when chromosomes have been duplicated)) followed by division (mitosis). (Letters)

Cell cycle, G2, M, G1, S

19

Interphase, gap before duplication, cell cycle

G1

20

Interphase, DNA synthesis and chromosomal duplication, cell cycle

S

21

Interphase, gap before mitosis, cell cycle

G2

22

Chromosomal duplication in the cell cycle

M phase, mitosis and cytokinesis

23

Exit for the cell cycle

G0

24

Microtubules radiating out into the cytoplasm from a single organizing center

Centerosome

25

Small darkly staining bodies, core of each centrosome

Centrioles

26

Mitosis: Chromosomes condense and become viable, centrosomes move apart toward opposite poles and generate new microtubules, nucleoli begin to disappear (vocabulary: centromere, sister chromatids)

Prophase

27

Mitosis: Nuclear envelope breaks down, microtubules from the centrosomes invade the nucleus, sister chromatids attach to the microtubules from opposite centrosomes (vocabulary: astral microtubules, kinetichore, kinetichore microtubules, polar microtubules)

Prometaphase

28

Mitosis: Chromosomes align on the metaphase plate with sister chromatids facing opposite poles.

Metaphase

29

Mitosis: Centromeres (holding sister chromatids together) sever, the now separated sister chromatids move to opposite poles

Anaphase

30

Mitosis: Nuclear membranes and nucleoli re-form, spindle fibers disappear, former chromatids now function as independent chromosomes, uncoil and become a tangle of chromatin.

Telophase