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40 Cards in this Set

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Protein which regulate growth and development in various cells of embryos, fetuses, and adult tissues?

cytokines

TTAGGC

AAUCCG

specialized proteins that serves as receptors to compounds that turn ON cell division

growth factor genes





During which phase of mitosis does the nuclear membrane reappear?

telophase

Proteins produced by our bodies to mark foreign particles/organisms for destruction?

antibodies

genetically programmed cell death

apoptosis

Which of the following tissue types represent by the epidermis?

stratified squamous

Small segments of RNA which determine if conditions are correct to allow protein synthesis to continue?

Riboswitches

for an embryo the solid ball of cells (16 cells) known as....

Morulae

which of the following protein structures regulate trafficking?

Cytoskeleton

Large RNA and protein complexes that are able to cut out the intron and splice the end of the exon "junk DNA"

spliceosomes

Flat melananized patches in the skin?

Freckles

Which layer of the dermis is the thickest?

Reticular Layer

What % of our DNA is the so called "junk DNA"

97%

when comparing DNA with RNA, DNA has...

Thymine



Which cell produce intelukins?

lymphocytes

this gene is mutated in over 25% of human cancers...

RAS

Which protein structure is describes as a complex coiling of the coils or folding of the folds in amino acid chain?

tertiary

In a blostocyst, the outermost cells are known as?

Trophoblasts

During which part of cell cycle are enzymes produced in preparation for cell division?

G2

Which of the germ layers gives rise to the gonads?

Mesoderm

During which phase of mitosis do the Centromeres line up on the metaphase plate?

Metaphase

Which of the following represents a cancerous growth gene?

ONCOGENE

ATTCGC

TAAGCG

Which of the germ layers gives rise to the sensory tissues?

ectoderm

These proteins mark the cells Self so that the immune system can tell the difference between...

Major Histocompatibility Complexes MHCs

a sequence of DNA nucleotide bases which carry the recipe or code for a particular polypeptide chain

GENE

These receptors signal pain sensations and are found in the dermis

Nociceptors

A yellow-ish orange pigment

carotene

How does the melanin protect the cell?

"protective cap" around sunny side

A gene that turns off cell division thereby preventing uncontrolled growth?

Tumor suppressor gene

A maternal dietary deficiency in which of the following may increase the risk of spina bifida?

folic acid

all plasma proteins are made by which of the following, except one group?

liver

specialized glands associated with evaporative cooling of the skin

ECCRINE OR MEROCRINE

an enzyme that connects several molecules into a long chain would be known as?

polyemerase

a type of hair which is usually found int he eybrows, eyelashes, etc

terminal

CAUAGU

GUAUCA

Gaunine belongs to which class of bases?

Purines

During which phase of mitosis does the nuclear membrane disappear?

Prophase

How does the enzyme speed up a reaction?

reduces activation energy