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Gala2k [10]
3 years ago
10

Compare and contrast the two prokaryotic kingdoms. What is one major difference that is apparent?

Biology
1 answer:
Nataly_w [17]3 years ago
6 0

Answer: B)

The chemical composition of the cell walls of each in the two kingdoms varies.

Explanation: Usatestprep

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GgBb _grey fur and black eyes.
gizmo_the_mogwai [7]

Answer No 4:

The possible gametes for a homozygous grey furred and homozygous black eyed rabbit will be GGBB.

Answer No 3:

The possible gametes for a heterozygous grey furred and heterozygous black eyed rabbit will be GgBb.

Answer No 4:

The possible gametes for a heterozygous grey furred and red eyed rabbit will be Ggbb.

Answer No 5:

The possible gametes for a white furred and heterozygous black eyed rabbit will be ggBb.

5 0
3 years ago
People who are tune deaf are unable to follow a rhythm. Scientists have evidence that tune deafness can be genetic. The pedigree
butalik [34]

Question

Pedigree attached

a. Provide evidence from the pedigree that conclusively shows that the tune deafness allele is autosomal dominant, not autosomal recessive. Explain your reasoning.

b. Identify the genotypes of individuals 5 and 6, and then draw the Punnett square for the cross of these two individuals.

c. Compare the expected percentage of each phenotype of the offspring from the cross in part (b) with the actual percentage of each phenotype observed in the children of individuals 5 and 6.

Answer/Explanation:

a. Autosomal dominant means that even having one copy of the allele T will produce a tune deaf individual. The evidence of this is that individuals II.3 and 4 have children (III. 8 and 9) with normal tune perception. This suggests that they have inherited the normal allele from both parents. That means II.3 and II4 must be heterozygous, in order to pass on the normal allele. This makes sense if tune deafness is dominant (because 3 and 4 will both be Tt and Tt, so can pass on the t alleles). However, if tune deafness was recessive, that would mean that individual II 3 and 4 both have to carry 2 copies, meaning there is no way their children would have normal tune perception.

b. Since individual 5 is unaffected and we know this is the recessive trait, they must be Tt. Since individual 6 is affected, they must be either Tt or tt. However, they have children who are unaffected (11, 12, 13) who must be tt. This means, individual 6 must have the t allele to pass on, and must be Tt. Therefore, the cross between individuals 5 and 6 is tt x Tt:

         T        t

t        Tt       tt

t       Tt       tt

c) The punnet square shows the children from (b) have a 50:50 chance of being tune deaf vs normal tune perception (50% each). In contrast, the actual ratios are 25% tune deaf to 75% normal tune perception. (1:4). This deviates from the expected ratio, but since all of these are due to chance, it is not an unexpected occurrence. Perhaps if there were 10, 50 or 100 children (!) from this cross, the results would be more like the expected ratio

5 0
3 years ago
Which feature is found in eukaryotic cells but not in prokaryotic cells? A. plasma membrane B. nucleus C. cytoplasm D. genetic m
kiruha [24]

B is the correct answer

A prokaryote cell has no distinct nucleus with a membrane and neither does it have other specialized organelle.

In a eukaryotic cell, the genetic material is DNA in the form of chromosomes which are found within a distinct nucleus.

Examples of prokaryotes Streptomyces soil bacteria (from which streptomycin antibiotic is derived), Escherichia coli bacterium and Streptococcus bacteria (which causes strep sore throat).

Examples of Eukaryotes include protozoa such as amoeba, fungi, plants, animals and generally all  multicellular organisms.


6 0
3 years ago
Read 2 more answers
What is biology and the branches of biology
Bingel [31]

Answer: Branches: There are three major branches of biology – botany, zoology and microbiology.

Biology is: Biology Anatomy is the study of the internal structures of living things.

Explanation:. Botany is the branch of biology which deals with the study of different aspects of plants. Theophrastus is known as the father of Botany. Zoology is the branch of biology connected with the study of different aspects of animals.

Hope this helped!

6 0
3 years ago
Read 2 more answers
Below is a food web from a tundra ecosystem in Nunavut, a territory in Northern Canada
navik [9.2K]

Answer:

2 and 4

Explanation:

Those eat things to become secondary

3 0
1 year ago
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