Quiz about Science UIL Biology Questions District 2020

Question 1

Which of the following is not evidence for evolution?

Accepted Answer

more offspring produced than the environment can support

Answer

fossil record

Answer

direct observations of evolutionary change

Answer

homology in different organisms

Answer

geographic distribution of species

Question 2

In genetics, the term penetrance refers to

Accepted Answer

the percent of individuals who express the expected phenotype for their genotype

Answer

the degree with which a trait is expressed

Answer

the same thing as dominance

Answer

the presence of lethal alleles

Answer

an organism having a heterozygous genotype but expressing a recessive trait

Question 3

Modified proteins leaving the Golgi apparatus in secretory vesicles would do so on the __ side of the Golgi body.

Accepted Answer

trans

Answer

cytoplasmic

Answer

exocytosis

Answer

endocytosis

Answer

cis

Question 4

Where would sarcoplasmic reticulum be found in the human body?

Accepted Answer

muscle cells

Answer

liver cells

Answer

skin cells

Answer

neurons

Answer

vitreous humor

Question 5

Communities with high diversity are

Accepted Answer

more stable

Answer

less productive

Answer

more prone to diseases or environmental stress

Answer

more likely to be destroyed by fires or other natural phenomena

Answer

less resistant to invasive species

Question 6

Some organisms can modify and run the citric acid cycle in reverse. This process

Accepted Answer

is a form of autotrophy

Answer

is catabolic

Answer

is exergonic

Answer

generates ATP

Answer

has a negative $$\Delta$$ G

Question 7

Which of the following represents a challenge in attempting to organize the diversity of life into a phylogenetic tree?

Accepted Answer

Analogy from convergent evolution

Answer

Morphological and molecular homologies

Answer

Descent with modification.

Answer

Changes in DNA sequences of universal genes.

Answer

Presence of mutations in analyzed species.

Question 8

In triglycerides, the bonds that forms between the fatty acid tails and the glycerol backbone are _ bonds/linkages

Accepted Answer

ester

Answer

ionic

Answer

ether

Answer

hydrogen

Question 9

The oxidation of ammonium (NH₄⁺) into nitrite (NO₂^-) and then nitrate (NO₃^-) is called

Accepted Answer

nitrification

Answer

ammonification

Answer

denitrification

Answer

nitrogen fixation

Answer

assimilation

Question 10

The ribosome is classified as a

Accepted Answer

ribozyme

Answer

catabolic enzyme

Answer

ribonuclease

Answer

structural protein

Answer

DNA-binding protein

Question 11

Drosophila persimilis and the closely-related Drosphila pseudoobscura inhabit the same geographic area in Hawaii. D. persimilis breeds early in the morning and D. pseudoobscura breeds in the afternoon. The type of reproductive isolation mechanism for these two Drosophila species is

Accepted Answer

temporal isolation

Answer

post-zygotic

Answer

hybridization, since both species are closely related

Answer

behavioral isolation

Answer

gametic isolation

Question 12

Examine the answer choices. Assuming that the cell cycle begins at G1, determine which event would occur second in relation to the other events listed.

Accepted Answer

Replication and migration of the centrioles to the poles of the cell

Answer

Formation of a cleavage furrow

Answer

Sister chromatids lining up along the "equator" of the cell

Answer

DNA synthesis

Answer

Separation of sister chromatids and movement towards the poles

Question 13

Taenia is a genus of helminths that can cause tapeworm infections (Taeniasis). The individual segments containing the reproductive structures of the tapeworm body are called

Accepted Answer

proglottids.

Answer

scolex.

Answer

rostellum.

Answer

suckers.

Answer

bursae.

Question 14

If a cell has a 2n of 30, how many different types of chromosomes are there?

Accepted Answer

15

Answer

60

Answer

45

Answer

30

Answer

Not enough information to solve the problem

Question 15

Examine the following wild type (WT) and mutated (MU) DNA coding sequences. Predict the type of mutation based on the information given.

WT: 5' -CCATGTTCTCCTAACG- 3'

MT: 5' -CCATGTTTCTCCTAACG- 3'

Accepted Answer

frameshift

Answer

silent

Answer

missense

Answer

nonsense

Answer

substitution

Question 16

Red is dominant to white. A cross between a red-flowered plant and a white-flowered plant results in 52 progeny with red flowers and 49 progeny with white flowers. What is the genotype of the red-flowered plant?

Accepted Answer

Rr

Answer

RR

Answer

rr

Answer

Ww

Answer

Not enough information to answer the question

Question 17

In December, 2019, the Centers for Disease Control and Prevention began issuing warnings for hard-boiled eggs from a specific company that might be contaminated with

Accepted Answer

Listeria

Answer

Salmonella

Answer

2019-nCoV.

Answer

Escherichia

Answer

Campylobacter

Question 18

The operator sequence of the lac operon of Escherichia coli is an example of _ regulation.

Accepted Answer

negative inducible

Answer

negative repressible

Answer

positive inducible

Answer

positive repressible

Question 19

Hematopoietic stem cells can differentiate into lymphoid stem cells or myeloid stem cells. Myeloid stem cells are the progenitors of all of the following except

Accepted Answer

natural killer cells

Answer

basophils

Answer

neutrophils

Answer

platelets

Answer

erythrocytes

Question 20

Which of the following traits is found exclusively in angiosperms?

Accepted Answer

ovaries

Answer

pollen

Answer

apical meristems

Answer

seeds

Answer

xylem and phloem

Science UIL Biology Questions District 2020

20 questions

Which of the following is not evidence for evolution?

In genetics, the term penetrance refers to

Modified proteins leaving the Golgi apparatus in secretory vesicles would do so on the __ side of the Golgi body.

Where would sarcoplasmic reticulum be found in the human body?

Communities with high diversity are

Some organisms can modify and run the citric acid cycle in reverse. This process

Which of the following represents a challenge in attempting to organize the diversity of life into a phylogenetic tree?

In triglycerides, the bonds that forms between the fatty acid tails and the glycerol backbone are _ bonds/linkages

The oxidation of ammonium (NH₄⁺) into nitrite (NO₂^-) and then nitrate (NO₃^-) is called

The ribosome is classified as a

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Science UIL Biology Questions District 2020

20 questions

Which of the following is not evidence for evolution?

In genetics, the term penetrance refers to

Modified proteins leaving the Golgi apparatus in secretory vesicles would do so on the __ side of the Golgi body.

Where would sarcoplasmic reticulum be found in the human body?

Communities with high diversity are

Some organisms can modify and run the citric acid cycle in reverse. This process

Which of the following represents a challenge in attempting to organize the diversity of life into a phylogenetic tree?

In triglycerides, the bonds that forms between the fatty acid tails and the glycerol backbone are _ bonds/linkages

The oxidation of ammonium (NH4+) into nitrite (NO2-) and then nitrate (NO3-) is called

The ribosome is classified as a

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The oxidation of ammonium (NH₄⁺) into nitrite (NO₂^-) and then nitrate (NO₃^-) is called