Differential gene expression

Question 1

Egg and sperm develop

Answer 1

zygote

Question 2

What are the 3 germ layers

Answer 2

Endoderm, Mesoderm, and Ectoderm

Question 3

Endoderm is the __________ and an example is _____

Answer 3

Innermost layer; Internal Organs

Question 4

Mesoderm is the ______ and an example is

Answer 4

Middle germlayer; Kidneys

Question 5

Ectoderm is the _____ and an example is

Answer 5

Outer germlayer; Skin

Question 6

What is Gastrulation

Answer 6

The formation of Primary Germ layers

Question 7

Somatic cells retain

Answer 7

The ENTIRE genome

Question 8

Totipotency is

Answer 8

No loss of genetic potential in early development

Question 9

Differential gene expression allows

Answer 9

the cells (or overall development) of the organism

Question 10

Differential Gene expression

Answer 10

LOWERS TOTIPOTENCY

Question 11

Certain cells may be turned off or on, this can

Answer 11

Assign cells to specialized properties/functions

Question 12

There are 3 things that controls cells interaction

Answer 12

Cell signal transduction pathway; Transcirptial/Post transcriptional, and Translational regulation

Question 13

Genes are

Answer 13

Differentially expressed in cell differentiation

Question 14

Development process features 2 key events

Answer 14

Cytoplasmic determinate and inductive signals

Question 15

Genes that are ______usually encodes transcription factors

Answer 15

direct to key events

Question 16

MyoD1 is an example of

Answer 16

Genes directing key events

Question 17

Morphogens are considered to be______; And can develop

Answer 17

Form givers;Concentration gradients

Question 18

Morphogens MUST

Answer 18

Directly affect TARGET CELLS

Question 19

Cytoplasmic determinate is commonly produced

Answer 19

BY MOM

Question 20

An example of gene expression in body segmentation is

Answer 20

Drosophila; Fruit fly

Question 21

An example of morphogens is

Answer 21

The hands

Question 22

Segmentation and homeotic genes

Answer 22

Controls LATER DEVELOPMENT

Question 23

MORPHOGENESIS IS THE PROCESS OF

Answer 23

Developing the body

Question 24

Homeotic ( in vertebrates) code for ______ that regulate the expression of

Answer 24

TRANSCRIPTION FACTORS ; GENES determine segments/structures

Question 25

The multigene family is composed of

Answer 25

Gene sequences BEING SIMILAR; Probability increases in duplication

Question 26

Product of BIOCOID gene in DROSOPHILA provides essential info about

Answer 26

Anterior- Posterior axis

Question 27

What serves as a source for developmental info in the EARLY Embryo?

Answer 27

Cytoplasmic determinates ( mrna/morphogens) present in EGG BEFORE FERTILIZATION

Question 28

What proportion of DNA in human genome codes for proteins/Functional RNA?

Answer 28

1.5-2%

Question 29

Cell not having any developmental flexibility is considered

Answer 29

Differentiated

Question 30

Retrotransposons are

Answer 30

RNA MOL as intermediate in Transposition

Question 31

Pseudogene is

Answer 31

DNA sequence that USED to be functional; NOT functional any more

Question 32

Homebox genes code

Answer 32

for TRANSCRIPTION FACTORS

Question 33

Homeodomain

Answer 33

BINDS DNA; Recognizes Target promoter sequence