15. Sheldrick Elephant Orphanage In Kenya, the Sheldrick Elephant orphanage takes care of elephants that have lost their herd as a result of poaching. In 2012, the orphanage had a population size of 387 elephants.
Match each type of inheritance with the correct pedigree numbered above
There are several possible modes of inheritance through which traits can be inherited. The following pedigree charts represent four different inheritance patterns.
1. Which of the following states a valid conclusion based on the pedigree above?
1. Which of the following states a valid conclusion based on the pedigree above? Select one: a. Individual I-2 does not carry the red-green colour blindness allele. b. All children of individuals I-1 and I-2 could be carriers of the re
Polydactyly is a rare human trait that causes an individual to have six digits (fingers or toes). An
Polydactyly is a rare human trait that causes an individual to have six digits (fingers or toes). An autosomal dominant gene causes the extra digit to develop.
Two genes, N and O, are 27 map units apart. If parents heterozygous for these genes were test crosse
1. Two genes, N and O, are 27 map units apart. If parents heterozygous for these genes were test crossed, and 500 offspring resulted, how many would be recombinants for genes N and O? Select one: a. 27 b. 130 c. 315 d. 135
Which of the following statements correctly describes the Chromosomal Theory of Inheritance?
Which of the following statements correctly describes the Chromosomal Theory of Inheritance? Select one: a. X and Y chromosomes determine whether an individual is genetically male or female. b. Homologous chromosomes separate independe
Which of the following statements is true for sex-linked traits in birds?
Which of the following statements is true for sex-linked traits in birds? Select one: a. Females can inherit an allele for a Z-linked trait only from their father, and males can inherit an allele for a Z-linked trait only from their mother.
Which of the following rows identifies the possible genotypes of the offspring?
Hemophilia is an X-linked disorder that affects the body’s ability to create blood clots. The allele for normal blood clotting, XH, is dominant over the allele for hemophilia, Xh.
An unaffected female that is not a carrier mated with an a
What are the Ploidy and chromosome number of daughter cells (human) during mitosis and meiosis?
6.What are the Ploidy and chromosome number of daughter cells (human) during mitosis and meiosis? 7. What is the Role of daughter cells (human) during mitosis and meiosis ?(Somatic cells or gametes) 8. What is the Function of division
Complete the following table to summarize the processes of mitosis and meiosis.
1. What type of parent cell are involved in mitosis and meiosis? (Somatic or germ cells ) 2. What are the number of times chromosomes replicate in one complete cell cycle for mitosis and meiosis? 3. Number of divisions in one complete cel
What are three differences between ion channels and ion transporters?
2. Describe how vitamin A1(all-trans-retinol) is altered to produce the visual pigment used in rhodopsin to absorb visible light. Include in your description what is structurally altered in this visual pigment upon light absorption.
14 out of 2400 babies that were born at a maternity hospital died shortly after birth from colonic o
14 out of 2400 babies that were born at a maternity hospital died shortly after birth from colonic obstruction due to a recessive allele. Determine the frequency of the lethal allele in the population, expressed as a percent.
how the interaction between giraffe and acacia tree can be a predator–prey relationship
20. Giraffes are herbivores found in Africa. They prefer to eat twigs and leaves from acacia trees. This type of producer–consumer relationship can be described as a predator–prey relationship or parasitism.
Match each structure in the reflex arc numbered above with its description given below.
2. Schwann cells are a type of glial cell found in the nervous system. In addition to the conduction of nerve impulses, the outermost layer called neurilemma aids in nerve development and regeneration. After examining the image below, can you e
31. Which of the following answers correctly identifies the number showing the axon terminal in the diagram and gives the axon terminal function? Select one: a. 1; production of action potential b. 5; production of serotonin c. 1;
The effect of the inhibitory neurotransmitter on the postsynaptic membrane is to
37. An excitatory neurotransmitter such as acetylcholine will open up ion channels in the postsynaptic membrane. This will allow sodium (Na+) ions to follow into the dendrite, increasing the membrane potential closer to 0 mV, thereby increasing the l
Please help me answer these last 5 questions, THANK YOU!!
24.Which of the following statements does NOT correctly describe the repolarization of a neuron? Select one: a. The neuron becomes more polarized and more negatively charged than its original resting membrane potential. b. The sodium a
What growth pattern of the Trumpeter swan population in Alberta is being observed?
Trumpeter Swans Trumpeter swans were once widespread and abundant in North America. However, a combination of heavy hunting pressure and habitat lost drastically 4 reduced the species’ population down to less than 70 individuals in the wild by t
Choose the correct defense mechanism from the drop down menu that match the following examples. A de
1.Choose the correct defense mechanism from the drop down menu that match the following examples. A defense mechanism can be used more than once. - Behavioural Defence -Crypric colouration -Protective Coloration -Mimicry Ex
When sticky ends of restriction fragments are paired, they can be joined by
34. Why? ( This question refers to the true and False question) Select one: a. It must use different restriction endonucleases because the bacterial and foreign DNA sequences are exactly the same. b. It must use same restriction endonu
The order in which a DNA fingerprint is produced using gel electrophoresis is
34. Why? Select one: a. It must use different restriction endonucleases because the bacterial and foreign DNA sequences are exactly the same. b. It must use same restriction endonuclease so that the restriction sites are identica
Pedigree information regarding the incidence of Tay-Sachs within a family is depicted above. The row ...
Pedigree information regarding the incidence of Tay-Sachs within a family is depicted above. The row below that indicates the genotypes of individuals II-1, II-2, and III-1 is Select one: a. II-1 II-2 III-1 AA aa Aa b. I
List in sequence, the events numbered above that occur during protein synthesis.
1. Some Events Occur in a Cell During Translation
mRNA binds to a ribosome. Transcription completes. mRNA leaves the nucleus. tRNA attaches to the start codon. Ribosome reads the mRNA codons. Stop codon marks the e
Which characteristics of mitochondrial DNA and chloroplast DNA sheds light into the evolutionary ...
25. Which characteristics of mitochondrial DNA and chloroplast DNA sheds light into the evolutionary relationships between species? Select one: a. mtDNA is found in all cells, whereas cpDNA is found in plant cells. b. cpDNA and mtDNA a
Cell Division, Genetics and Molecular Biology questions
28. Which of the following was not one of the first uses of modern biotechnology? Select one: a. The insertion of a bacterial insulin gene into human cells. b. The insertion of a human insulin gene into bacteria. c. The cloning of
What are the sticky ends of the restriction fragments?
31.What are the sticky ends of the restriction fragments? Select one: a. The surfaces of sticky ends have glue like substance that allow fragments to splice. b. The surfaces of sticky ends contain the exact same nucleotides, allowing f
Zebra mussel population growth in the Great Lakes is a growing concern. Zebra mussels are not native ...
Zebra Mussel Zebra mussel population growth in the Great Lakes is a growing concern. Zebra mussels are not native to North America, and due to their ability to rapidly multiply, they have been depleting the food sources for many of the native fi
Which of the following rows identify the type of mutation and the process in protein synthesis that ...
16. Which of the following rows identify the type of mutation and the process in protein synthesis that is most affected by an insertion of a nucleotide in a gene that codes for a ribosome? Select one: a. Mutation Process Substitu
