Deck 19 (361- 380) Flashcards
- Recessive allele in complete dominance has:
a. has the identical quality in both heterozygote (Aa) and homozygote (aa)
b. has a different quality in heterozygote (Aa) than in homozygote (aa)
c. in the homozygous condition is influenced by the environment in every case
d. may weaken the influence of the dominant allele on the phenotype
a. has the identical quality in both heterozygote (Aa) and homozygote (aa)
- Microfossils of the earliest organisms indicate that they resemble the present day spirochetes. True or false?
false
- Parathyroid glands appear for the first time in:
a. mammals
b. insects
c. amphibians
d. birds
c. amphibians
- The most numeral group of plants are algae are:
a. Heterokontophyta
b. Euglenophyta
c. Rhodophyta
d. Chlorophyta
d. Chlorophyta
- In cross heterozygotes:
a. dominant homozygotes occur more frequently among the offspring than heterozygotes
b. the proportion of genders among their offspring may be identical
c. recessive homozygotes occur more frequently among the offspring
d. homozygotes cannot occur among the offspring
b. the proportion of genders among their offspring may be identical
- Th early earth was a harsh environment and present day organisms that could possibly have survived that type of environment are:
a. eukaryotic organisms
b. archaebacteria
c. probionts
d. eubacteria
b. archaebacteria
- Insulin:
a. accelerates decomposition of glycogen in the liver
b. increases the deposition of glycogen in the liver and muscles
c. increases the level of glucose in blood
d. decreases deposition of glycogen in the liver and muscles
b. increases the deposition of glycogen in the liver and muscles
- The most important phylogenetic node of evolution of higher plants is represented by:
a. Bryophyta
b. Rhyniophyta
c. Polypodiophyta
d. Lycopodiophyta
Rhyniophyta
- It is characteristic of monohybridism that:
a. only three different types of cross are possible
b. if both of the parents are different homozygotes, they create an identical type of gametes
c. offspring of two different homozygotes is genotypical and phenotypically uniform
d. offspring of two different homozygotes creates two two phenotypic groups
c. offspring of two different homozygotes is genotypical and phenotypically uniform
- Microfossils found in rocks that date to be about 1.5 billion years old:
a. are believed to be fossils from Mars meteorites that fell to earth
b. are larger organisms compared to earlier microfossils
c. look vert similiar to present day cyanobacteria
d. are simple structure with no internal membrane
are larger organisms compared to earlier microfossils
- Hormones:
a. act non-specifically to the cells of target tissues
b. act specifically to the cells of target tissues
c. are building substances
d. are a source of ATP
b. act specifically to the cells of target tissues
- Bryum argenteum belongs to:
a. Tracheophyta
b. Bryophyta
c. Sphenophyta
d. Marchantiophyta
Bryophyta
- The correct writing for the parental generation in monohybridism is:
a. AA x aa
b. aa x Aa
c. Aa x Aa
d. AaBb x AaBb
a. AA x aa
- The endosymbiotic theory explains:
a. the origin of all organelles in eukaryotic cells
b. how eukaryotic cells consume food
c. how mitochondria and chloroplasts originated from free-living cells
d. none of the above
how mitochondria and chloroplasts originated from free-living cells
- Hormonal regulatory mechanisms:
a. are quicker than nerve regulations
b. appear in vertebrates first time
c. occur as early as in invertebrates
d. in invertebrates they are replaced by nerve regulation
c. occur as early as in invertebrates
