Bio final

Therapeutic cloning differs from reproductive cloning in that therapeutic cloning?

Is the cloning of human stem cells to treat human diseases

Provides nourishment to the primary oocyte?

Layer of Granulosa cells

Cancers that metastasize invade normal tissue to impede their functions are called?

Malignant tumors

Energy that has not been used but has the potential to do work is called?

Potential energy

The pennant square is a useful tool for?

Predicting the ratio is a possible genotypes of a particular combination of alleles

What type of allele located on chromosomes 7 is concurrent with cystic fibrosis

Recessive

Active transport is like facilitated diffusion in that both processes

Require the presence of proteins in the plasma membrane that move the molecules from one side of the plasma membrane to the other

Naturally occurring enzymes in some bacteria that break the bonds between specific neighboring base pairs in a DNA strand by cutting them

Restriction enzymes

Type of microscope provides tremendous 100,000 fold magnification and enables viewing of fine internal structural details of cells?

Transmission electron microscope

Although a specific codon specifies only one amino acid, several different codons can specify the same amino acid true or false

True

Although the cells of a multicellular organism are specialized for certain functions those cells must also be integrated and organize in order to work together to benefit the organism true or false

True

During meiosis, Homologous chromosomes are separated during meiosis I True or false

True this happens during prophase in A process called crossing over

Proto-oncongenes

control normal cell division

Polymerase chain reaction PCR is useful for amplifying a small piece of DNA but it is not a good technique for cloning genes because?

copies of DNA produced by PCR's black regulatory genes and proteins required to activate genes

Where are the iron Adams of the heme groups return to after recycling of the hemoglobin?

the red bone marrow

An increased risk of cancers of the colon, Rectum and prostate gland can caused by?

A diet high in redmeat and saturated fat's

During weight loss what cells typically stay the same in both number and size

Adipocytes

Each of the following statements is true regarding hydrogen bonds except which one? A-hydrogen bond holds the two strands of DNA together. B-hydrogen bonds are responsible for the attraction of Na+ to CI-. C-hydrogen bonds form between different water molecules. D-hydrogen bonds are responsible for some aspects of the three-dimensional structure of proteins

B-hydrogen bonds are responsible for the attraction of Na+ to CI-

Why does the body fluid in humans have a high buffering capacity?

Because of the presence of the bicarbonate/carbonic acid buffer system

Why are oxygen and carbon dioxide able to pass through the plasma membrane of the cell?

Because they are small and nonpolar, and readily passed between phospholipids

Why is carbonic acid and bicarbonate the most important buffer Pairs in blood?

Because they regulate the pH of blood by absorbing and releasing hydrogen ions as needed

Oxygen and carbon dioxide are able to pass through the plasma membrane of the cell because? A-they move through the ion pours B-both are lipid soluble C-they are small and nonpolar, and readily passed between phospholipids D-they are both polar molecules in a huge bind to a transport protein that pulls it across the membrane

C

Oncongenes

Contribute to the development of cancer

An enzyme that binds fragments of DNA back together after the restriction enzymes have cut them?

DNA ligase

The enzyme that catalyzes the attachment of nucleotides to the growing complementary DNA strand

DNA polymerase

The process by which a cell becomes different from its parent or sister cell

Differentiation

Adipocyte cells

Do not reduce or change size even with weight loss

abnormal structural change occurs in a cell is called?

Dysplasia

Differentiation is the process of sister chromatids separating from each other during meosis II. True or false

False

What technique is used to separate a mixture of DNA fragments in which shorter pieces move longer distances when electrical current is applied?

Gel electrophoresis

The inflammatory response is initiated by the release of what chemical from the basophils?

Histamine

What contains the haploid number of chromosomes

Human gametes

Which type of tissue is able to contract?

Muscle

A mass of rapidly dividing cells that have potential he lost the ability to regulate cell division is called?

Neoplasm

Unlike white blood cells red blood cells lose their______ and______ as they mature

Nucleus and organelles

In the cell, proteins are synthesized for immediate use by the cell are normally produced by? Pg.63

On Free floating ribosomes

Vitamin D

One of the few vitamins that can be produced by the human body

What does not play a role in the return of blood to the heart via the veins

Osmotic pressure exerted by plasma proteins in the blood

The process by which food is propelled through the digestive track by alternating contraction and reaction of smooth muscle is?

Peristalsis

Gurgling of the stomach is due to?

Peristaltic contractions

Small, circular, self replicating DNA molecules found in bacteria

Plasmids

Which of the following is a Characteristic of Klinefelter syndrome?

Sterility and mild mental impairment

The three glands that make up the salivary gland's include?

Sublingual, parotid abs submandibular glands

What controls the rate of sperm production?

Testosterone

Plants that have foreign DNA inserted into their genome for the purpose of producing products beneficial to humans are referred to as?

Transgenic

What is a common Characteristic in both eukaryotic and prokaryotic cells

They both have a Cell membrane

How is active transport and facilitated diffusion process is the same?

They both require the presence of proteins in the plasma membrane that move molecules from one side of the plasma membrane to the other

A student in a histology class was asked to describe the structure of a stratified squamous epithelium. How would you describe this

Tissue composed of several layers of flat cells resting on a basement membrane

Which way does deoxygenated blood always flow

Toward the right atrium

The process by which the DNA code is converted from a single gene into a complementary single strand of MRNA is called?

Transcription