Genetics

Question 1

How gamete cells are produced for sexual reproduction

Answer 1

Meiosis

Question 2

Centriole

Answer 2

Shoots’ spindle fiber

Question 3

Spindle fiber

Answer 3

detaches the sister chromatids

Question 4

Centromere

Answer 4

sticks sister chromatids together

Question 5

Sister chromatids

Answer 5

identical copies made from a parent cell in mitosis

Question 6

Diploid

Answer 6

two sets of genetic info from each parent

Question 7

Haploid

Answer 7

Single set of unpaired chronozones

Question 8

Chromozones

Answer 8

threadlike structure made up of protein and DNA, used to carry genetic info from cell to cell

Question 9

Karyotype

Answer 9

analysis of chromones in a cell during miosis

Question 10

Histones

Answer 10

used to package chromozones

Question 11

Chiasmata

Answer 11

Links the chromosomes in meiosis together

Question 12

Homologous chromosomes

Answer 12

A pair of chromosomes ( same genes different traits)

Question 13

Zygote

Answer 13

The first cell made after the egg is fertilized

Question 14

Pyrimidine

Answer 14

Consists of 1 (n) ring

Question 15

Purine

Answer 15

Consists of two (n) rings

Question 16

Telomere

Answer 16

Repetitive DNA sequence at the end of the chromosome that protects the ends

Question 17

Genotype

Answer 17

An organisms genetic makeup (AA, Aa, aa)

Question 18

Phenotype

Answer 18

Set of perceivable traits

Question 19

Allele

Answer 19

a single letter in the genotype

Question 20

Homozygous

Answer 20

A pair of similar alleles

Question 21

Heterozygous

Answer 21

A pair of alleles unique to eachother

Question 22

Sematic cell

Answer 22

none sex cell

Question 23

Gametes

Answer 23

Sex cells (sperm or ova)

Question 24

Heridity

Answer 24

Transmission of traits from one generation to another

Question 25

Rececive

Answer 25

the lack of expression in a trait

Question 25

Dominant

Answer 25

the expressed version in a heterozygous person

Question 26

Blastula

Answer 26

Hollow ball of cells

Question 27

Fertilization

Answer 27

Fusion of sets of genetic info

Question 28

Embryo

Answer 28

Developed ball of cells

Question 29

Placentia

Answer 29

or umbilical cord is the connected o the baby in order to provide oxygen and nutrients

Question 30

Amniocenteses

Answer 30

Process of sampling fetal cells from amniotic fluid.

Question 31

Tetrad

Answer 31

Genetic info with four pieces

Question 32

Crossing over

Answer 32

Where homologues cross and exchange genetic info

Question 33

DNA consists of

Answer 33

two molecules arranged to form double helix

Question 34

Nucleotide

Answer 34

Basic building block for DNA

Question 35

What does DNA stand for

Answer 35

Deoxyribonucleic acid

Question 36

Difference between Meiosis and Mitosis

Answer 36

Mitosis results in two identical nuclei, with meiosis resulting in four nuclei unique to each other

Question 37

Disjunct event

Answer 37

When meiosis goes wrong (unequal separation of chronozones during anaphase 1 or 2)

Question 38

Trisomy

Answer 38

Extra chromosome

Question 39

Down syndrome

Answer 39

Trisomy 21 (extra 21 chromosome)

Question 39

Monosomy

Answer 39

Missing chromosome

Question 40

Edwards syndrome

Answer 40

Trisomy 18 (extra 18 chromosome)

Question 41

Turner syndrome

Answer 41

Genetic female missing x chromosome

Question 42

Super male

Answer 42

Genetic male has extra y

Question 43

Patau syndrome

Answer 43

Trisomy 13 (extra 13 chromosome)