Science UIL Biology Questions District 2020

Which of the following is not evidence for evolution?

• fossil record

• direct observations of evolutionary change

• homology in different organisms

• geographic distribution of species

• more offspring produced than the environment can support

Tags

NGSS.HS-LS4-1

In genetics, the term penetrance refers to

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

• the degree with which a trait is expressed

• the same thing as dominance

• the presence of lethal alleles

• an organism having a heterozygous genotype but expressing a recessive trait

Tags

NGSS.HS-LS3-3

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

• cytoplasmic

• exocytosis

• endocytosis

• cis

• trans

Where would sarcoplasmic reticulum be found in the human body?

• liver cells

• skin cells

• neurons

• muscle cells

• vitreous humor

Communities with high diversity are

• less productive

• more stable

• more prone to diseases or environmental stress

• more likely to be destroyed by fires or other natural phenomena

• less resistant to invasive species

Tags

NGSS.HS-LS2-6

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

• is catabolic

• is exergonic

• is a form of autotrophy

• generates ATP

Tags

NGSS.HS-LS2-3

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

• Analogy from convergent evolution

• Morphological and molecular homologies

• Descent with modification.

• Changes in DNA sequences of universal genes.

• Presence of mutations in analyzed species.

Tags

NGSS.HS-LS4-1

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

• ionic

• ether

• ester

• hydrogen

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

• ammonification

• nitrification

• denitrification

• nitrogen fixation

• assimilation

Tags

NGSS.HS-LS2-3

The ribosome is classified as a

• ribozyme

• catabolic enzyme

• ribonuclease

• structural protein

• DNA-binding protein