Biology Answers

Populate the table using the OMIM database. OMIM (Online Mendelian Inheritance in Man) is a medical database that collects information about known diseases with a genetic component and the genes responsible for their development. This database provides a bibliography for future research, a toolkit for genomic analysis of a registered gene, and is used in the medical literature to provide a single index for genetic diseases.

No Name of Gene Localisation of Gene Determine the type of mutation Inheritance type Name of the disease

1 TYR

2 FBN1

3 HBB

4 HTT

5 STS

Task 2. The protein contains the amino acid valine. As a result of mutations in the DNA molecule, the replacement occurred in one nucleotide. The triplet encoding the amino acid - cysteine encoded by the UGU triplet is replaced by the UGA triplet. This replacement results in ______________ mutations.

Task 1. When nitrous acid acts on DNA molecules, cytosine is replaced by guanine. Determine the type of mutation. Explain the mechanism. What structure will a section of the synthesized protein have if a polypeptide with the following amino acid sequence was to be formed: ser - ile - tre - proser, but all cytosine nucleotides of the corresponding DNA region underwent the specified chemical transformation? Determine the type of mutation.

Exercise 1. Fill in the table:

Types of apoptosis

Types of apoptosis

Characteristics

"Apoptosis from the inside"

"Apoptosis on command"

1) Deforestation results in an increase of greenhouse gases because fewer trees means

less carbon dioxide is released into the atmosphere.

less carbon dioxide is removed from the atmosphere.

less glucose is released into the atmosphere.

less oxygen is removed from the atmosphere.

2) As Earth'stemperatures warm, Arctic ice is melting. What is the long-term result of this process?

Animals have more places to live.

Water levels go down.

Water levels rise and cover coastal lands.

There is no change.

3) If a forest fire destroyed a deciduous forest, what long-term effects might the forest ecosystem experience?

The ecosystem would be lifeless because animals would not relocate into this ecosystem.

Large mammals and snakes would be the dominant animal populations relocating into this ecosystem.

Weeds and grasses would begin to grow and the ecosystem would be restored over time.

Fast-growing plants would be the only plants would the ability to survive in this forest.

4) A pond that suddenly has an increased growth in algae probably was polluted by —

people dumping waste oil in the pond.

a diseased animal.

an increase in chromosomes.

people over-fertilizing their lawns nearby.

5) The series of changes that occurs in an area where no soil or organisms exist is called —

primary succession.

carrying capacity.

commensalism.

secondary succession.

6) This diagram is of succession from field to forest. You may not see all of the aspects of each stage in the diagram.

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There is A,B, C, D, E. Pick which of the following should go in each place.

Oak trees

Wild Flowers

Pine Trees

Lichen

Shrubs

Evaluate the effectiveness of screening the blood products for one transmissible disease by considering the safety of the products used in blood transfusions and the screening procedures used.

• consider the safety of the products used in blood transfusions by discussing, in general terms, the screening procedures used.

• evaluate the effectiveness of the screening process in relation to one named transmissible disease.

Phosphate Buffered Saline (PBS) is a commonly used buffer for experiments in biology because its pH and ion concentrations are similar to those in mammalian organisms. It works in a similar fashion to the blood plasma buffer mentioned in the textbook, but using dihydrogen phosphate ions and hydrogen phosphate ions for buffering through the following chemical reaction: H2PO4 - (aq) ⇆ H + (aq) + HPO4 2- -(aq) The equilibrium arrows depict that the phosphate ion (H2PO4- ) is dissociating further into two component ions in solution, but at the same time H+ and HPO42- ions are combining simultaneously to form phosphate in solution. So, at any given point in time, and under the appropriate conditions, there is an equal quantity of dissolved ions and combined ions in solution. There is therefore always a hydrogen ion donor and an acceptor in solution. Based on the equation above, which ion plays the role of hydrogen-ion donor (acid) and which ion plays the role of hydrogen-ion acceptor (base) in PBS? 

list down atlest 5 diseases caused by the malfunction of each tissue types(epithelial tissue, connective tissue,muscle tissu, and nervous tissur)

Which ions are being produced by this process, assuming that each of the chemical compounds dissociate into their constituent parts once they are dissolved in water?     

explain effectiveness and efficiency of the specific and non-specific defences.