Užduočių lapas tema Biologija slaugos stojamiesiems egzaminams su atsakymais

Nemokamas spausdinamas užduočių lapas tema Biologija slaugos stojamiesiems egzaminams: 8 uždavinių nuo lengvų iki egzamino lygio, su atsakymais. Atsispausdinkite arba išsaugokite kaip PDF.

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Vardas: ____________________   Data: ____________

1.Lengvas

What is a Punnett square used for?

  1. APredicting the possible genotypes of offspring
  2. BShowing the order of genes on a chromosome
  3. CMeasuring the size of a cell
  4. DCounting the chromosomes in a cell
2.Lengvas

What is phagocytosis?

  1. AA cell releasing hormones by exocytosis
  2. BA cell dividing into two identical daughter cells
  3. CA cell engulfing large particles such as bacteria
  4. DA cell taking in small droplets of fluid
3.Lengvas

In genetics, what is a carrier?

  1. AA person with two recessive alleles who has the disorder
  2. BA person who has lost both alleles for the gene, so shows no trait
  3. CA person with one recessive allele for a disorder but no symptoms
  4. DA person who has a dominant disorder
4.Vidutinis

What is a random sample?

  1. AA group chosen because they are likely to support the hypothesis
  2. BA group where everyone in the population has an equal chance of being chosen
  3. CA group chosen by the researcher because they are easy to reach and willing
  4. DA group made only of people who volunteer to take part
5.Vidutinis

Why are G–C base pairs held together more strongly than A–T pairs?

  1. AA–T pairs are found only in RNA
  2. BG–C pairs form three hydrogen bonds, and A–T pairs form two
  3. CG and C are both purines, so they fit more tightly
  4. DG–C pairs are joined by strong covalent bonds instead of hydrogen bonds
6.Vidutinis

Why does PCR use a DNA polymerase taken from bacteria that live in hot springs?

  1. AIt copies RNA as well as DNA
  2. BIt makes the DNA strands stick together
  3. CIt works only in the dark, like the bacteria it comes from
  4. DIt survives the high temperatures used to separate the strands
7.Sunkus

Two parents are both carriers of cystic fibrosis, an autosomal recessive disorder. They have three children. What is the probability that none of the three is affected?

  1. A1/64
  2. B9/16
  3. C3/4
  4. D27/64
8.Sunkus

A scientist wants to show that a particular microbe causes a disease. According to Koch's postulates, which step is needed?

  1. AThe disease must be treated successfully with antibiotics
  2. BThe microbe must be found in healthy hosts just as often as in sick hosts
  3. CThe microbe must be seen in the blood under a light microscope
  4. DThe microbe grown from a sick host must cause the disease in a healthy host

Atsakymai

  1. 1. A · Predicting the possible genotypes of offspring
  2. 2. C · A cell engulfing large particles such as bacteria
  3. 3. C · A person with one recessive allele for a disorder but no symptoms
  4. 4. B · A group where everyone in the population has an equal chance of being chosen
  5. 5. B · G–C pairs form three hydrogen bonds, and A–T pairs form two
  6. 6. D · It survives the high temperatures used to separate the strands
  7. 7. D · 27/64
  8. 8. D · The microbe grown from a sick host must cause the disease in a healthy host

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