BIOL 2051 Chapter : Diversity

10 views9 pages

azuremammoth471

15 Mar 2019

School

Department

Course

Professor

For unlimited access to Textbook Notes, a Class+ subscription is required.

Document Summary

Microbes = can exist as unicellular prokaryotes and eukaryotes (too small to be seen with naked eye) most species on earth are like this. Most eukaryotes are unicellular prokaryotic cell types evolved to become the first eukaryotic cells on planet (happened about 2 billion years ago) Theory of endosymbiosis ( symbio = two species living very close together) 1950s theory (lyn biogoolas?) One cell ate another cell w/ a mitochondria: we have nuclear genome and also circular mitochondrial genome (that is in prokaryotes) Chloroplasts come from same kind of process (look into how produced in eukaryotic organism) **all eukaryotic cells have mitochondria (higher plants that have this also have chloroplasts to photosynthesize (there are exceptions ) Plants have three genomes (two from above nuclear and mitochondrial chloroplast mitochondrial genome, which is also circular) Higher plants = multicellular, eukaryotic plants that can do photosynthesis. For 2 billion years after life began, only at prokaryotic form.

Related Questions

1.) the oldest fossil identifie so far , the stromatolites , represent which type of cell ?

2. A genetic change that causes a certain Hox gene to be expressed along the tip of a vertebrate limb bud instead of farther back helped make possible the evolution of a tetrapods limb. This type of change represents which of the following ?

A. Paedomorphosis

B. Heterochrony

C. A change in developmental gene or in its regulation that altered the spatial organization of body parts

D. The influence of environment on development

3. The endosymbiosis theory states the orgin of the eukaryotic cells began when

A. A mutation in prokaryotic cells led to the creation of new organelles

B. Prokaryotic cell consumed a smaller cell

C. Prokaryotic cells went extinct

D. A prokaryotic cell needed more energy and evolved a mitochondria

4. Long term trends over geological history in speciation and extinction rates can be partially explained by

A. Natural selection in small populations

B. Over harvesting by humans

C. Plate tectonics and continental drift

D. Short term changes in present day environment

5. Fossil records are important for understanding change in living organism however there are multiple limitations including ( choose all that apply )

1. Evolutionary trends in fossils may change when new fossils are found

2. Some organisms do not create fossils

3. Fossil records are biased towards certain types of species

4. Not all fossils have been found

Question 1

The process by which RNA is synthesized using DNA as a template is â¦

Select one:

a. replication

b. transcription

c. translation

d. inspiration

Question 2

Which of the following occurs during meiosis but not mitosis?

Select one:

a. DNA condenses into chromosomes

b. nuclear envelop disappears

c. homologous chromosomes separate

d. sister chromatids separate

Question 3

Which part of the animal life cycle is haploid?

Select one:

a. gamete

b. zygote

c. sporophyte

d. spore

Question 4

Single celled eukaryotic organisms are â¦

Select one:

a. viruses

b. bacterial

c. archaea

d. protists

Question 5

Which type of cellular division results in the formation of diploid cells from a diploid parent cell?

Select one:

a. mitosis

b. meiosis

c. interphase

d. A and B but not C

e. all of the above

Question 6

A sequence of DNA that codes for a single protein is a â¦

Select one:

a. gene

b. ribosome

c. mRNA

d. none of the above

Question 7

Which of the following is characteristic of animals?

Select one:

a. heterotrophic

b. sexual reproduction

c. embryonic development

d. all of the above

Question 8

All genes have only two possible alleles.

Select one:

True

False

Question 9

The presence of membrane-bound organelles is characteristic of â¦

Select one:

a. prokaryotes

b. viruses

c. bacteria

d. eukaryotes

Question 10

What are the building blocks of proteins?

Select one:

a. fatty acids

b. amino acids

c. nucleic acids

d. all of the above

Question 11

During which phase of the cell cycle does DNA replication occur?

Select one:

a. Mitosis

b. Interphase

c. Meiosis

d. Replicosis

Question 12

Which of the following characteristic is shared among fungi and animals?

Select one:

a. autotrophic

b. heterotrophic

c. cell walls

d. absorb nutrients

Question 13

A error in DNA replication that goes unrepaired is a â¦

Select one:

a. chromosome

b. chromatid

c. mutation

d. none of the above

Question 14

Alternate forms of a gene are called ________.

Select one:

a. chromatids

b. chromosomes

c. ribosomal subunits

d. alleles

Question 15

The physical expression of a genotype is the phenotype.

Select one:

True

False

Question 16

In complete dominance, a heterozygous genotype results in â¦

Select one:

a. a recessive phenotype

b. a dominant phenotype

c. a third and unique phenotype

d. none of the above

Question 17

Which theory explains the evolution of eukaryotes from prokaryotes?

Select one:

a. phagocytosis

b. endosymbiosis

c. pinocytosis

d. none of the above

Question 18

Which scientist experimented with plants to describe patterns of inheritance?

Select one:

a. Mendel

b. Chase

c. Einstein

d. Watson

Question 19

Which cellular organelle contains aerobic cellular respiration?

Select one:

a. chloroplasts

b. mitochondria

c. nucleus

d. lysosome

Question 20

Which of the following statements is false?

Select one:

a. Haploid gametes are formed by meiosis

b. Mitosis forms genetically identical daughter cells

c. Mitosis results in the formation of four daughter cells from a single parent cell

d. Mitosis forms diploid daughter cells from a diploid parent cell

Question 21

The first forms of life on Earth were ________.

Select one:

a. plants

b. microorganisms

c. birds

d. dinosaurs

Question 22

Which of the following is used to separate chromosomes during nuclear division?

Select one:

a. cytoskeleton

b. microtubules

c. actin and myosin

d. amoeboid movement

e. all of the above

Question 23

Which generation is most dominant in more primitive plants?

Select one:

a. bryophyte

b. sporophyte

c. gametophyte

d. androphyte

Question 24

Which of the following is characteristic of plants?

Select one:

a. autotrophic

b. contain chloroplasts

c. multicellular

d. all of the above

Question 25

During which phase of mitosis do chromosome line up along the middle of the cell?

Select one:

a. prophase

b. metaphase

c. anaphase

d. telophase

Question 26

During which phase of mitosis does DNA condense into distinct chromosomes?

Select one:

a. prophase

b. metaphase

c. anaphase

d. telophase

Question 27

The process by which DNA is used as a template to make new DNA is â¦

Select one:

a. translation

b. replication

c. transcription

d. allocation

Question 28

Which of the following is characteristic of plant but not animal cells?

Select one:

a. chloroplasts

b. water vacuole

c. cell wall

d. all of the above

Question 29

Which meiotic division is most like mitosis?

Select one:

a. Meiosis I

b. Meiosis II

c. Meiosis III

d. Meiosis IV

Question 30

Which enzyme catalyzes replication?

Select one:

a. DNA polymerase

b. RNA polymerase

c. Ribosome

d. all of the above

BIOL 2051 Chapter : Diversity

Document Summary

Get access

Related Documents

BIOL 2051 : Exam 1 Notes-- Fall 2015

BIOL 2051 : Micro Exam 5 Study Guide

BIOL 2051 Chapter : Chapter 1 5 Review

Related Questions