Test Year 12 Biology Module 5 Heredity PDF

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Test Year 12 Biology Module 5 Heredity...

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1/24/2021

Test: Year 12 Biology Module 5: Heredity | Quizlet

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7 Matching questions 1.

What are the five types of asexual reproduction?

2.

What is the source and function of the follicle

stimulating hormone?

A. a structural unit of a eukaryotic chromosome, consisting of a length of DNA coiled around a core of histones. B. Anterior pituitary gland. Male: stimulates production of sperm Female: stimulates maturation of ovum in follicles

3.

Vegetative propagation C. maintains endometrium

4.

What is a polypeptide? D. parent organism's body fragment or splits and these parts

5.

What is the function of progesterone?

6.

fragmentation and regeneration

7.

What are nucleosomes?

develop into a fully grown individual e.g. sponges, cnidarians, annelids (worms) and echinoderms (star fish) E. A chain of amino acids --> a polymer of amino acids that have a specific function. We also call them proteins. F. 1. Spores 2. Binary fission 3. Budding 4. Vegetative propagation and fragmentation 5. Parthenogenesis G. parts of the parent plant detach and grow into new individuals that are genetically identical to parent Tubers e.g. potatoes Stolons e.g. grasses, strawberry Rhizomes e.g. bamboo Suckers e.g. apple, raspberries Bulbs e.g. onions, garlic

7 Multiple choice questions 1. DNA tightly coiled around histones (proteins) A. Telophase B. Complete dominance example C. Where are ribosomes and what are their function? D. Chromatin

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Test: Year 12 Biology Module 5: Heredity | Quizlet

2. A: can produce large numbers of offspring quickly to take advantage of a sudden or temporary increase in some environmental resource such as food. Uses less energy. D: by producing genetically identical offspring, there is less variation in the population. If an environmental change occurs, a low-variation species is at risk of extinction. A. What genetic errors threaten the continuity of species (provide examples) B. What are the advantages and disadvantages of asexual reproduction? C. What is the source and function of the follicle stimulating hormone? D. Explain the reproductive strategies of placental mammals, Marsupial mammals, and monotreme mammals.

3. Spindle fibres contract, chromosome pairs separate and are pulled toward opposite poles. A. Metaphase 1 B. Metaphase C. Anaphase D. Parthenogenesis

4. EXONS: coding sequences → will result in a polypeptide after translation. INTRONS: Non-coding sequences → will not result in polypeptide, need to be removed. A. What are ribosomes? B. Gene expression examples: C. What is DNA replication? D. What are exons and introns?

5. - RNA is single strand - RNA polynucleotide strands are usually much shorter - sugar-phosphate backbone has a ribose sugar - Uracil replaces thymine - three main forms: messenger RNA, ribosomal RNA and transfer RNA A. Explain the three stages of interphase B. What is polypeptide synthesis? C. RNA is the other nucleic acid. The differences between DNA and RNA are: D. How does meiosis result in genetic variation?

6. three five A. There are two hydrogen bonds between _____________ and _____________ and three hydrogen bonds between ____________ and _____________ B. If deoxyribose is an arrow then the oxygen is a point and it points from ______ prime to ______ prime. C. How do bacteria reproduce? D. What genetic errors threaten the continuity of species (provide examples)

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Test: Year 12 Biology Module 5: Heredity | Quizlet

7. When a eukaryotic cell is not dividing chromatin chromatin exists in its dispersed form as a mass of very long thin fibres not visible with light microscope A. What is the difference between asexual reproduction and sexual reproduction? B. What is chromatin and when is it visible? C. What is the source and function of luteinising hormone? D. What is polygenetic inheritance?(example)

6 True/False questions 1. advantageous well-suited short energy rapidly→Asexual reproduction is ___________________ when a parent organism is ________________ to its environment and being able to clone many copies of itself in a relatively _______ period of time uses less __________ than sexual reproduction. This means it can __________ spread into a less populated area. True False 2. reproduction through spores (fungi and plants) e.g. mosses, ferns→Cytokinesis True False 3. Inheritance of a genetic trait located on the sex chromosomes (Thomas Morgan - fruit fly) e.g. haemophilia on X chromosome →What is a phenotype? True False 4. An organism's genetic code contain instructions for every feature of that individual (how the function and physical features), when a cell divides, it is vital that the DNA passed on to each daughter cell is an exact copy, so that each generation contain the same genetic instructions.→How does meiosis result in genetic variation? True False 5. Stability arises when chromosomes are replicated accurately and give rise to identical daughter chromosomes. Successful and desirable traits must be passed on, along with some random errors. This allows species to evolve if environmental change occurs.→What genetic errors threaten the continuity of species (provide examples) True False

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Test: Year 12 Biology Module 5: Heredity | Quizlet

6. 1. during mitosis, the resulting daughter cells must have the same number of genes as the original cell 2. when two sexually reproducing organisms breed, the resulting offspring must have the number number of genes as the parent organism and variations in these genes must not be extremely detrimental or lethal→Genetic continuity is dependent on two things: True False

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