UIL Biology 2019 Inv

If an organism is homozygous recessive for a trait, which of the following is not a possible genotype of the organism's progeny?

• AA

• Aa

• aa

• unable to determine

Answer explanation

progeny = offspring

Y = yellow (dominant)

y = green (recessive)

homozygous recessive = yy

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

The light-harvesting pigments of photosynthesis in

eukaryotes are typically found within

• nuclear membranes

• the endoplasmic reticula

• the plasma membrane

• thylakoid membrand

• mitochondria

Answer explanation

Thylakoid = disk shape structure in the chloroplast

stack of thylakoids = granum (plural: grana)

Which of the following would you not find

associated with the plasma membrane of a cell?

• Transmembrane proteins

• Phospholipids

• Integral proteins

• Selective permeability

• Ribosomes

Answer explanation

With the extinction of dinosaurs nearly 65.5 million

years ago, which group of animals adapted and

evolved very quickly afterwards?

• Arthropods

• Mammals

• Amphibians

• Reptiles

• Aquatic vertebrates

Answer explanation

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-4

Which organ system has no known function in

defense from microbial invaders?

• Integumentary

• Lymphatic

• Immune

• Nervous

• All of these have some defense function

Answer explanation

A Mendelian monohybrid cross would yield a

genotypic ratio of _____

• 3:1

• 1:1

• 1:2:1

• 9:3:3:1

• None of these

Answer explanation

A monohybrid cross is one in which both parents are heterozygous (or a hybrid) for a single (mono) trait. The trait might be petal color in pea plants. When conducting crosses, the first generation is called P (or P₀)(P is for parental), the second generation is F₁ (F is for filial), and the next generation is F₂.

Which process specifically generates a protein’s

primary structure from an mRNA sequence?

• Gene expression

• Translation

• Transcription

• Replication

• Transformation

Answer explanation

Primary structure is the sequence of amino acids in the protein.

Translation is the process of building a strand of amino acids (protein) from the code carried in mRNA.

Translation occurs in the ribosomes.

Which of the following is the correct order of phases

during the nuclear division portion of the eukaryotic

cell cycle for somatic cells?

• Prophase, Anaphase, Metaphase, Telophase,

  Cytokinesis

• Prophase I, Metaphase I, Anaphase I, Telophase

  I, Cytokinesis, Prophase II, Metaphase II,

  Anaphase II, Telophase II, Cytokinesis

• Telophase, Anaphase, Metaphase, Prophase,

  Cytokinesis

• Prophase, Metaphase, Anaphase, Telophase,

  Cytokinesis

• G1, S, G2, mitosis

Answer explanation

PMAT

Please Make A Taco Candy

I Party More At The Club

Tags

NGSS.HS-LS1-4

DNA replication in Domain Bacteria occurs

• within the nucleus

• prior to mitosis

• immediately prior to cell division

• during gene expression

• only for one of the DNA strands in the double helix

Answer explanation

Bacteria = prokaryote

No nucleus

circular single strand DNA

No mitosis

Naked DNA (no proteins)

The field of biology that studies characteristics of

organisms and attempts to classify them into specific

groups is called

• population biology

• phylogeny

• biological diversity

• ecology

• taxonomy

Answer explanation

taxonomy: the branch of science concerned with classification, especially of organisms; systematics.

phylogeny: the history of the evolution of a species or group,