UIL Science Level 1 Jack

An organism that inherits two of the same alleles for

a single trait is

• homozygous.

• haploid.

• heterozygous.

• hemizygous.

• polyploid.

Replicate the following DNA template strand: 3’-CAGGTTCAAG-5’

• 5’-CAGGTTCAAG-3’

• 5’-GUCCAAGUUC-3’

• 3’-GTCCAAGTTC-5’

• 5’-CAGGUUCAAG-3’

• 5’-GTCCAAGTTC-3’

All of the following cell division processes generate

haploid cells in humans, except

• mitosis.

• meiosis.

• oogenesis.

• gametogenesis.

Which of these statements describes the process of

translation?

• The flow of genetic information from DNA to

  RNA.

• The copying of DNA to transmit the genetic

  information to daughter cells during cell

  division.

• The generation of an amino acid sequence from

  a specific order of codons on messenger RNA.

• The expression of a gene on DNA into tRNA or

  rRNA.

• Vertical gene transfer during mitosis.

A Mendelian dihybrid cross in which both parents

are heterozygous for both traits would yield a

phenotypic ratio of_________________ .

• 1:2:1

• 3:1

• 1:1

• 9:3:3:1

• none of the above

Inserting or deleting a base from a DNA coding

region would result in which type of mutation?

• nonsense

• missense

• frameshift

• silent

• substitution

Tags

NGSS.HS-LS3-2

All of the following answer choices are examples of

symbiosis. Which is the best example of

mutualism?

• Nitrogen-fixing bacteria residing within root

  nodules of leguminous plants.

• A domesticated dog having fleas.

• Tapeworms inside a mammal’s intestines,

  consuming nutrients and leading to malnutrition

  and weight loss.

• Fungi growing on the side of a dead tree by

  secreting enzymes and absorbing the digested

  products.

• A viral infection in a human cell.

What is the correct volume reading for the liquid in

this burette?

• 20.84 mL

• 20.96 mL

• 20.90 mL

• 21.05 mL

• 21.16 mL

A piece of silvery metal measuring 2.0 cm × 2.0 cm

× 5.0 cm has a mass of 178.60 g. Which of these

metals is it most likely to be?

• Aluminum

• Iron

• Cobalt

• Nickel

• Copper

Tags

NGSS.HS-PS1-3

How many atoms are in one mole of C₆H₁₄? 1 mole of molecules = 6.02 x 10²³ molecules Hint: note that this question is asking for number of atoms.

• 6.022 × 10²³

• 1.204 × 10²⁴

• 6.022 × 10²⁴

• 1.204 × 10²⁵

• 6.022 × 10²⁵