Bio Midterm 2

Question 1

Nuclear membrane begins to break down in prophase

Answer 1

True

Question 2

Chromosomes are at their maximum condensation in telophase

Answer 2

False

Question 3

Random alignment of the homologous x somes happens at metaphase I?

Answer 3

True

Question 4

There are two nuclear divisions in mitosis and one nuclear division in meiosis

Answer 4

False

Question 5

Mitosis and cytokinesis give rise to two clones

Answer 5

True

Question 6

A human primary oocyte can give rise to one one viable egg.

Answer 6

True

Question 7

Sister chromatids are lined up at the equator of the spindle at :

Answer 7

Metaphase stage of mitosis

Question 8

X somes are duplicated in

Answer 8

The S stage of interphase

Question 9

Crossing over

Answer 9

All of the above

Question 10

An XO woman is fertile?

Answer 10

False

Question 11

Human males determine the gender of the offspring?

Answer 11

True

Question 12

Charcot Marie tooth disease is an X linked dominant trait

Answer 12

True

Question 13

xYY males are fertile

Answer 13

True

Question 14

Non disjunction at interphase 1 or anaphase 2 frequently results in aneuploidy

Answer 14

True

Question 15

Hemophiliac woman has child with normal man. Chance of hemophilia?

Answer 15

50%

Question 16

X linked recessive disorder

Answer 16

Hemophilia

Question 17

Individual has xxy genotype

Answer 17

Klinefelter syndrome

Question 18

Autosomal recessive disorder

Answer 18

Cystic fibrosis

Question 19

Cri-du-chat

Answer 19

Deletion

Question 20

Individual has X0 genotype

Answer 20

Turner syndrome

Question 21

Individual has three of number 21

Answer 21

Downs syndrome

Question 22

SRY gene is located on

Answer 22

Y chromosome

Question 23

Presence of three or more of each type of chromosome in gametes or somatic cells

Answer 23

Polyploidy

Question 24

Adipose tissue cells are filled with lipids

Answer 24

True

Question 25

Glial cells conduct nerve impulses while neurons support the glial cells

Answer 25

False

Question 26

Endocrine glands produce and release hormones

Answer 26

True

Question 27

In negative feedback, the stimuli are intensified several folds before homeostasis is resumed

Answer 27

False

Question 28

The walls of the stomach are lined with skeletal muscle tissue

Answer 28

False

Question 29

Collagen and elastin are typically found in connective tissue

Answer 29

True

Question 30

The function of simple squamos is diffusion

Answer 30

True

Question 31

Simple columnar epithelium is found in the lining if gut and respiratory tract

Answer 31

True

Question 32

The outer layer of skin is consisted of epithelium

Answer 32

False

Question 33

Striated and involuntary muscle

Answer 33

Cardiac muscle

Question 34

Glands are derived from

Answer 34

Epithelial tissue

Question 35

Specialized connective tissue that contains chondrocytes

Answer 35

Cartilage

Question 36

Tendons and ligaments consist of

Answer 36

Dense connective tissue

Question 37

A heat sensitive neuron in your skin is an example of a

Answer 37

Sensory receptor

Question 38

Which of following contains oxygen transporting protein hemoglobin

Answer 38

Red blood cells

Question 39

Respiration sensors respond to a rise in ____ by ____ the rate of breathing

Answer 39

CO2 | Increasing

Question 40

Which ABO blood type us known as the universal donor

Answer 40

O

Question 41

Which isn't component of plasma

Answer 41

Red blood cells

Question 42

Which is not involved in the formation of a blood clot

Answer 42

Albumin

Question 43

Which isn't component of human respiratory system?

Answer 43

Esophagus

Question 44

What is the hormone that stimulates the bone marrow to produce more red blood cells.

Answer 44

Erythropoietin

Question 45

Excitation for a heart beat is initiated in the

Answer 45

Sinoatrial SA node

Question 46

Plasma is the cellular portion of blood

Answer 46

False

Question 47

Humans have open circulatory system

Answer 47

False

Question 48

Gas exchange takes place in alveoli

Answer 48

True

Question 49

Slower than normal heart beat

Answer 49

Bradycardia

Question 50

Receives blood from body

Answer 50

Right atrium

Question 51

Receives blood from lungs

Answer 51

Left atrium

Question 52

Pumps blood to lungs

Answer 52

Right ventricle

Question 53

Pumps blood to body

Answer 53

Left ventricle

Question 54

Faster than normal heart beat

Answer 54

Tachycardia

Question 55

In animal cells cytoplasmic division is done by furrowing?

Answer 55

True

Question 56

Genes

Answer 56

Units of info about traits | Each gene has a locus on a chromosome

Question 57

Allele

Answer 57

Various molecular forms of a gene for the same trait

Question 58

True breeding lineage

Answer 58

Offspring inherit identical alleles generation after generation. Non identical alleles produce hybrid offspring

Question 59

Homozygous condition

Answer 59

Both alleles are the same

Question 60

Heterozygous condition

Answer 60

Alleles differ

Question 61

Homozygous dominant Homozygous recessive Heterozygous

Answer 61

AA aa Aa

Question 62

Genotype

Answer 62

Sum of genes

Question 63

Phenotype

Answer 63

How the genes are expressed | What you observe

Question 64

Epistasis

Answer 64

One gene pair influences other pairs.

Question 65

Aneuploidy

Answer 65

Gametes or cells of an effected individual end up with one extra or less chromosome.

Question 66

Polyploidy

Answer 66

Presence of three or more of each type of chromosome in gametes or cells

Question 67

Bone tissue

Answer 67

Stores minerals salts produces blood cells

Question 68

Adipose tissue

Answer 68

Specialized for fat storage

Question 69

Skeletal muscle

Answer 69

Attached to bones for voluntary movement

Question 70

Smooth muscle tissue

Answer 70

Contains spindle shaped cells. Lines the gut and glands. Involuntary

Question 71

Negative feedback

Answer 71

Detects a change in internal environment and brings conditions to the original state. Kinda like a thermo stat