Exam 2- Energy Drinks

Réussis tes devoirs et examens dès maintenant avec Quizwiz!

Which of the following traits are considered to be inheritable?

Eye Color

DNA is first wrapped around proteins called histones, forming RNA

False

If the codon is CCA, what is the anticodon and what amino acid will be inserted?

GGU, proline

An allele is a variation of a gene, usually due to small changes in the nucleotide sequence within the gene (T/F)

True

DNA Replication is Semiconservative: During DNA replication, each of the strands acts as a template for the construction of a new daughter strand (T/F)

True

In humans, male gametes are called ________, while female gametes are called ________.

sperm; eggs

During metaphase I of meiosis, genetic information is exchanged between two homologous chromosomes, resulting in new combinations of alleles. This process is called ________.

Crossing over

The method of determining the exact nucleotide order of a sequence of DNA is called ________ and is now an automated process that involves fluorescent dyes and automated machines.

DNA Sequencing

During the human life cycle, the fertilization of an egg by a sperm results in

Diploid zygote

Which of the following is the main difference between in vivo and ex vivo gene therapy?

Ex vivo gene therapy occurs outside the body and in vivo gene therapy occurs inside the body.

A codon is a three-nucleotide or triplet sequence found on tRNA that codes for a certain amino acid during translation. The anticodon is a three-nucleotide sequence found on mRNA that binds to the corresponding mRNA sequence. (T/F)

False

By tracking where the radioactive isotopes ended up after the viruses infected the cells, Alfred Hershey and Martha Chase identified that protein, not DNA, is the genetic material in cells (T/F)

False

On the leading strand, the DNA polymerase makes short segments of DNA, called Okazaki fragments, which are then connected together by a DNA ligase enzyme (T/F)

False

One example is complete dominance, where the dominant allele does not completely mask the recessive allele.

False

The first 23 pairs of chromosomes are called autosomes, and there are no differences between them in males and females.(T/F)

False

The mutated hemoglobin protein causes the red blood cells to be more effective for the exchange of gases in our bodies.(T/F)

False

When hemoglobin picks up oxygen, it forms carbonic acid (T/F)

False

Which of the following statements best describes the structure of a hemoglobin molecule?

Hemoglobin is comprised of four globin molecules, each with their own heme group that binds to and carries oxygen.

Sickle-cell disease results in misshapen red blood cells. What impact does this have on their ability to carry gases in the bloodstream?

It reduces their ability to carry oxygen, resulting in anemia.

Sickle-cell disease results in malformed hemoglobin molecules. Which cell type contains millions of hemoglobin molecules per cell?

Red blood cells

DNA replication is considered to be ________ because the end product consists of one old strand and one newly synthesized strand.

Semi-conservative

Haploid refers to the presence of a single set of chromosomes in an organism's cells. Living organisms are diploid (having two sets of chromosomes, one from each parent). In humans, only the egg and sperm cells are haploid. (T/F)

True

The square in the F2 generation, called a Punnett square, can help you visualize the process of meiosis. On the outer part of the square are the possible eggs and sperm cells (which are haploid), while the inner part of the square shows the possible diploid offspring.(T/F)

True

The start codon (sequence AUG ) is the first codon of a messenger RNA transcript translated by a ribosome. The start codon always codes for methionine(T/F)

True

When the capillaries surrounding the alveoli become blocked by sickle-shaped RBCs, it can cause a condition known as acute chest syndrome (T/F)

True

anemia 1-Has an impact on the ability of the cells and organs of the immune system to perform their function. 2- Individuals with sickle-cell disease are often more prone to infections, such as those from viruses and bacteria. (T/F)

True

Humans have two sex chromosomes that are named based on their shape. Males have (an) ________ and females have (an) ________.

X and Y chromosome; two X chromosomes

Where within the lungs does gas exchange occur?

alveoli

During translation, a polypeptide chain is created using a RNA template. Which of the following components is responsible for bringing amino acids to the growing polypeptide chain?

tRNA

Sickle-cell disease is a recessive genetic disease. This means

two copies of the recessive allele must be present in order for the disease to be expressed.


Ensembles d'études connexes

air conditioning and cabin pressurisation

View Set

Chapter 11 Part 2: Visual Identity

View Set

MEDSURG TEST #3: CH 66 - Shock, Sepsis, and MODS

View Set

Federal Tax Considerations for Life Insurance

View Set

ASE A1 (Engine Repair) Practice Test - Cumulative

View Set

MKT 230 Chapter 14, MKTG 351 CHAPTER 15, chpt 13, chapter 11marketing, MKTG CH 12 TRUE OR FALSE, Marketing Study Questions, ch 13, Chapter 11, Marketing 351 Ole Miss Cousley Chapters 13 (Shuffle to avoid repeating of the same topics), chp 6 mktg, chp...

View Set

Opiniones positivas y negativas.

View Set

Med Surg; Chapter 17 - Fluid, Electrolyte, and Acid-Base Imbalances (160 questions)

View Set