Genetic Processes

Question 0

which membrane plays a critical role in the transport of ions?

Answer 0

intergral proteins

Question 1

during diffusion, a substance always moves from a ___ concentration to a ___ concentration.

Answer 1

high to low concentration

Question 2

The movement of a substance across a membrane from a low to high concentration is called..

Answer 2

active transport

Question 3

plasmolysis occurs when plants are placed in a ________ solution

Answer 3

hypertonic

Question 4

The formation if a female gamete is called…

Answer 4

oogenesis

Question 5

three components of DNA molecules are..

Answer 5

ribose sugar, phosphates and nitrogenous bases

Question 6

the stage of meiosis when synapsis occurs is…

Answer 6

prophase 1

Question 7

why is the fluid mosaic model called what it is called?

Answer 7

fluid- because the molecules itself are moving

mosaic- because it’s made up of many different parts

Question 8

name 2 types of proteins in the cell membrane and their functions

Answer 8

enzyme-protein built into the membrane may be an enzyme with its active site exposed to substances in the adjacent solution
Hormone receptor-acts as a hormone that is used in the cell membrane like testosterone
attachment- adjacent cells hooked together in various kinds of cytoplasm attachments
cytoskeleton support- fibers in the cytoskeleton may be bonded to membrane proteins and are vital in support of the cell membrane

Question 9

define pinocytosis

Answer 9

cell drinking

Question 10

define phagocytosis

Answer 10

cell eating

Question 11

how many chromosomes in a human somatic cell?

Answer 11

46

Question 12

how many chromosomes in a human sex cell?

Answer 12

24

Question 13

thymine is always bonded to..

Answer 13

adenine

Question 14

guananine is Always bonded to..

Answer 14

cytosine

Question 15

define eurkaryotic cells

Answer 15

cells that contain membrane bound organelles

Question 16

state the 5 stages of mitosis

Answer 16

interphase prophase metaphase anaphase telophase

Question 17

what are some examples of gene mutations?

Answer 17

color blindness, sickle cell anemia, hemophilia, Tay Sachs disease

Question 18

what is non-disjunction?

Answer 18

chromosomes that normally separate during meiosis remain together.

Question 19

what is a meta female?

Answer 19

trisomy X (XXX) with limited fertility

Question 20

what is klinefelters syndrome?

Answer 20

males XXY

enlarged female body contours

Question 21

consider the gene for eye colour. “Bb” refers to…

Answer 21

The genotype

Question 22

what is the genotype that indicates a female carrier for a sex linked trait?

Answer 22

X X^a

Question 23

what gender is most likely to have a sex linked trait?

Answer 23

males

Question 24

define pedigree chart

Answer 24

diagram of an individuals ancestors used in human genetics to amylose the inheritance or a detain trait.

Question 25

what is an "in vertro" egg?

Answer 25

an egg fertilized outside the womb