t takes about the same amount of time for the DNA in eukaryotic chromosomes to be...
multiple answers are possible! Which of the following statement about DNA is FALSE? When bacteriophage DNA was shown to be the agent necessary for production of new phages, this was the early experiment demonstrating that DNA is the hereditary material. During DNA replication, two replication forks are formed to complete the synthesis of the entire chromosome in eukaryotes. During bacterial DNA replication process, replication forks move in opposite directions away from the origin of replication The molecular structure of DNA...
Answer both a and b. The genome of the bacteria E. coli is 5.4 X 106 nucleotides long. Replication of the DNA here is 500 nucleotides/second. Replication is bi-directional from the single origin, so each fork copies ~ half of the DNA and the two forks probably get done at about the same time. a. How long should it take (in minutes) for replication to be completed in E. coli? The haploid human genome is 3 X 109 nucleotides long,...
QUESTION 1 Cats, dogs, sheep, cows and horses all have about the same amount of DNA. Cats have 10 pairs of chromosomes, dogs have 39 pairs, shop have 27 pairs, cows have 30 pairs and horses have 32 pairs. Which of these species would have, on average the smallest chromosomes? Cahorses b. cows d. dogs e sheep
42. Which statement is NOT true about DNA? a) DNA acts like an enzyme by binding amino acids together using dehydration synthesis. b) Before cells divide both strands must be copied and one is provided for each new cell cm RNA is copied from a piece of DNA termed a gene. d) DNA is not always copied perfectly. Mistakes, mutations, occur and result in changed proteins, e) DNA functions as code for the synthesis of proteins. 43. A section of...
Quession 14 Which statement about mitosis is true? Select one a. DNA replication is completed in prophase. b. The chromosome number in the resulting cells is halved c. Two genetically identical daughter cells are formed. d Crossing over occurs during prophase e. It consists of two nuclear divisions. Quession 15 How does a nucleus in G2 difler from a nucleus in G17 Select one a. DNA synthesis occurs only in G1 phase. b Inactive cells are arrested only in G2...
1Plants can create new organs.................................................................. at seedling stage at vegetative stage at spring time at summer time all of the above 2.One of the compound below is NOT a primary product of photosynthesis.... A. Starch B. Sucrose C. Triose phosphate D. Glucose E. Phosphoglyceric acid (PGA) 3.Which chemical groups from a pair of amino acids must react to form a peptide bond? A. the two R-groups or sidechains B. the two carboxyls C. the two alpha carbons D. the amino...
Instructions: Read each question carefully before selecting the one alternative that best completes the statement or answers the question in each case and then indicate it on the answer card. Work at a steady pace and you should have ample time to finish the examination. MULTIPLE CHOICE (2 points each) chi Which group of organisms other than viruses is represented by the most number of individuals on earth? Insects b. Bacteria Archea d. Rats e. Earthworms c. A quaint bacteria...
Microbiology study guide questions. Please Help! s. which of the following statements about water activity is not true? a) many fungi can tolerate aw levels of 07-0.8 b) many microorganisms grow well at an aw of 0.98 e sear water has an aw of 0.98 e-xerephiles thrive in dry conditions DNA typically becomes disordered below an a of o.90 Which of the following descriptions about ribosome structure is not true? a) 80s is the size of the intact functional ribosome...
Unit 3 Study Resource Meiosis • Process by which diploid cells create haploid cells NOT part of the cell cycle > only some cells ever undergo meiosis During meiosis I, homologous chromosomes line up to allow them to be separated into two new cells o They can become "tangled" during this phase, which leads to crossing-over (rearranging the alleles) O Result of meiosis I is two non-identical haploid cells Meiosis Il looks very similar to mitosis, in that sister chromatids...
4. In a lake governed by the food web shown in the image to the right, 500 brown trout are added from fisheries. Which of the following outcomes would most likely be expected? A. Tadpole population will increase B. Duck population will decrease C. Algae population will increase D. Lilly Pad population will decrease E. Caddis Fly larvae will increase 5. Which of the following pieces of evidence most strongly supports a common ancestor of all life on Earth? A....