Genetics

Question 1

Asexual reproduction

Answer 1

Reproduction that requires only one parent, mitosis only

Question 2

Chromosome

Answer 2

Long pieces of DNA found in the nucleus of eukaryotic cells

Question 3

Dihybrid

Answer 3

Identically heterozygous at two loci for example RRYy

Question 4

Diploid

Answer 4

A set of chromosomes containing both members of each chromosome pair

Question 5

Egg

Answer 5

Female gamete with one copy of each chromosome

Question 6

Embryo

Answer 6

Early stages of growth and differentiation characterized by rapid cell division and the formation of organ systems

Question 7

Fertilization

Answer 7

Make and female gamete fuses

Question 8

Gene

Answer 8

Segment of DNA that codes for a particular trait

Question 9

Genotype

Answer 9

Makeup of organism, letters

Question 10

Haploid

Answer 10

Set of chromosome containing only one member of each chromosome pair

Question 11

Sexual reproduction

Answer 11

Reproduction that requires two parents

Question 12

Sperm

Answer 12

Male gamete with one copy of each chromosome

Question 13

One step in a single eukaryotic cell becoming two daughter cells is the process of

Answer 13

Mitosis

Question 14

Law of independent assortment

Answer 14

Genes segregate without influence on each other’s inheritance

Question 15

How does gamete relate to body cell

Answer 15

Body cell has double the chromosomes

Gametes hold half as many as body cells

Question 16

During the formation of gametes independent assortment occurs

Answer 16

Between homologous

Question 17

Mendes hypothesis that two factors for each trait are segregated during the formation of gametes is explained by

Answer 17

Separation of homologous chromosomes during meiosis

Question 18

Law of independent assortment

Answer 18

Gene pairs sort randomly and independently of each other

Question 19

The law of segregation states

Answer 19

Alleles of a gene separate from each other during meiosis

Question 20

To describe how traits can disappear and reappear in a certain pattern from generation to generation Mendel proposed

Answer 20

The law of independent assortment

Question 21

One of the plants that the scientists is studying has an extra copy of one chromosome in all its cells, this variation most likely occurred during

Answer 21

Meiosis

Question 22

Crossing over commonly results inn

Answer 22

New combinations of genes

Question 23

For tests always cross with

Answer 23

Homo Recessive

Question 24

The genetic makeup of an organism is called its

Answer 24

Genotype

Question 25

Living things grow because

Answer 25

Organisms produce more and more cells by mitosis

Question 26

How are mature human sperm and egg similar

Answer 26

Same number of chromosome in the nuclei

Question 27

Female gametes at called

Answer 27

Eggs

Question 28

Each egg and Sperm cell contains a haploid number of chromosomes, after fertilization a zygote is formed with a blank number of chromosomes

Answer 28

Diploid number

Question 29

How many chromosomes are in a human gamete

Answer 29

23

Question 30

A human zygote contains how many chromosomes

Answer 30

46

Question 31

Sex cells are also called

Answer 31

Gametes

Question 32

If father has mutation and every Daughter does but no sons what type of mutation is not possible

Answer 32

Y linked

Question 33

No disjunction is related to human disorder, how

Answer 33

Alters chromosome numbers

Question 34

What occurs during the process of meiosis in humans that can lead to a child with the condition of Down syndrome

Answer 34

Production of gametes with one duplicate chromosome, no disjunction of chromosome 21 during meiosis

Question 35

In which situation are the phenotype a of f2 offspring expected to follow the 9:3:3:1 ratio

Answer 35

Dihybrid cross for two unlinked traits

Question 36

Which stage of meiosis is responsible for the law of independent assortment

Answer 36

Metaphase one

Question 37

Synapsids

Answer 37

Forming tetrad

Question 38

Crossing over happens where

Answer 38

Prophase one

Question 39

Inn complete dominance

Answer 39

Neither alleles dominant, blending

Question 40

Co dominance

Answer 40

Dominant form of each are evident, spots, blood

Question 41

Hybrid

Answer 41

Hetero

Question 42

Purebred

Answer 42

Homo

Question 43

True breeding

Answer 43

Homo

Question 44

Dihybrid solving

Answer 44

Foil

Question 45

Circle with dot (pedigree)

Answer 45

X linked

Question 46

If most of the males in the pedigree are affected the disorder is

Answer 46

X linked

Question 47

If the ratio of fifty fifty then the disorder is

Answer 47

Autosomal

Question 48

If it is recessive

Answer 48

Neither parents have it

Question 49

If it is dominant

Answer 49

Parent must have it

Question 50

Allele

Answer 50

An alternate form of a gene for one trait