15 And More

Question 0

How many chromosome pairs do humans have

Answer 0

23

Question 1

Interphase

Answer 1

G1, S , G2

Question 2

Gametes in humans are what ploidy level

Answer 2

Haploid

Question 3

In diploid species the members of a pair of chromosomes are called

Answer 3

Homologues

Question 4

Centromere

Answer 4

Where the chromatids are joined together

Question 5

During which phases is the DNA in chromatin form

Answer 5

G1 , S

Question 6

Meiosis 2 is similar to

Answer 6

Mitosis

Question 7

Meiosis one makes

Answer 7

Gametes

Question 8

An allele is

Answer 8

A form or version of a gene

Question 9

T/F

In mitosis you in up with what you started with ?

Answer 9

True

Question 10

Meiosis one . Begin with 46SR and end with

Answer 10

46 DR

Question 11

Meiosis 2 . Begin with 46dr end with

Answer 11

92 sr

Question 12

Genotype

Answer 12

Combination of alleles that a individual has

Question 13

Phenotype

Answer 13

The traits ; characteristics

Question 14

A kinase is

Answer 14

An enzyme that phosphoralates a molecule

Question 15

CDKs

Answer 15

Cyclins or cyclin-dependent kinases

Question 16

Where are the checkpoints in the eukaryotic cell cycle

Answer 16

G1 , g2, metaphase

Question 17

Crossing over provides

Answer 17

Genetic variation in generations

Question 18

When does crossing over occur

Answer 18

In tetrads of prophase 1 and metaphase 1

Question 19

Linked genes

Answer 19

Genes on the same homologous pair of chromosomes and they do not obey Mendel’s second law

Question 20

Tyrosine is used to make

Answer 20

Thyroxine

Question 21

DOPA is used to make

Answer 21

Adrenaline

Question 22

Phenylalanine > tyrosine > ?

Answer 22

DOPA

Question 23

Phenylalanine ? tyrosine

Answer 23

Phenylalanine hydroxylase

Question 24

Tyrosine ? DOPA

Answer 24

Tyrosinase

Question 25

PKU can be controlled by

Answer 25

Diet

Question 26

What race is primarily associated with cystic fibrosis

Answer 26

Caucasian

Question 27

What race is primarily associated with Tay Sachs

Answer 27

Jewish

Question 28

Codominance

Answer 28

Both expressed fully

Question 29

Incomplete dominance

Answer 29

Both expressed partially

Question 30

Traits are a combination of

Answer 30

Genes and environment

Question 31

Pleiotrophy

Answer 31

More than one phenotypic effect from just one gene - because of metabolic pathways

Question 32

PKU phenotype

Answer 32

Severe mental retardation ; low thyroxine ; low irritability ; blonde hair blue eyes and white skin

Question 33

Albinism is

Answer 33

No melanin in skin (caused by an autosomal recessive allele)

Question 34

Tyrosinase is active below 35 degrees Celsius and inactive above that which causes

Answer 34

The Siamese cat coloring

Question 35

Barr bodies

Answer 35

An inactivated X chromosome (never gets read) *think calico cats*

Question 36

All new genes come from

Answer 36

Duplications of genes

Question 37

Transcribe a gene means to

Answer 37

Turn on a gene

Question 38

What percentage of DNA are genes (codes for proteins)

Answer 38

3%

Question 39

Different types of chromosomes are different from each other by

Answer 39

Having different genes

Question 40

Homologous chromosomes

Answer 40

Have the same genes at the same loci but may have different alleles

Question 41

The g1 checkpoint is the

Answer 41

Decision to divide

Question 42

The g2 checkpoint checks for

Answer 42

Chromosomal damage and proper replication of DNA

Question 43

Metaphase checkpoint checks to see that

Answer 43

All the chromosomes are along the equator

Question 44

Interphase is during

Answer 44

G1 S and G2

Question 45

Crossing over can occur in

Answer 45

Prophase 1 and metaphase 1 ( only while in tetrads )

Question 46

Centromere near the middle

Answer 46

Meta centric

Question 47

Centromere between the middle and end

Answer 47

Sub meta centric

Question 48

Centromere near the end

Answer 48

Acrocentric

Question 49

Centromere at end

Answer 49

Telocentric

Question 50

Genome

Answer 50

All of the DNA (coding and non-coding) in an individual's cells