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Nezavi [6.7K]
3 years ago
14

Biological differences between males and females, other than contrasts in breasts and genitals, is

Biology
1 answer:
artcher [175]3 years ago
7 0
Answer:  "sexual dimorphism" .
_________________________________________________
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In E. coli, there is a mutation in a gene called dnaB that alters the helicase that normally acts at the origin of replication.
kvasek [131]

Answer:

When helicase mutations occur, problems in DNA replication are found. The helicases are proteins that open the 2 strands of DNA to initiate the duplication, they are responsible for breaking the hydrogen bonds between the two DNA chains, thus separating the chains, also they have the function of repairing DNA mutations, if there is mutation in the gene that encodes them, various functions will be absent in the cell.

8 0
3 years ago
Internalized homophobia can be defined as _______
SSSSS [86.1K]

Answer: c.  Self-hatred because of one's homosexuality

Explanation:

Internalized homophobia is a feeling of self disgust or hatred which is also called as a feeling of internal oppression. This appears when a person a person develops sexual desire for the person of a same sex that is development of homosexuality. People become gay, lesbian and bisexual. This is related with feeling of stress, anger and unsatisfaction.

6 0
2 years ago
Which scientific area is a major force in shaping modern classification methods?
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The answer is C. evolution


3 0
3 years ago
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Homozygotes with two sickle-cell alleles are selected against because of mortality. However, heterozygotes for sickle-cell allel
grigory [225]

Answer:

Increased frequency of the allele for sickle cell anemia

Explanation:

Sickle cell anemia is fatal in homozygous genotype. The homozygous genotype having two copies of the allele for sickle cell anemia is not favored by natural selection due to its reduced survival success.

However, the heterozygous genotype for sickle cell anemia with one allele for the disease exhibit malaria resistant. The presence of one allele is not fatal for the organisms as the presence of one normal allele ensures the formation of some normal hemoglobin protein and RBCs to support the oxygen delivery to the body parts.

The increased survival success of heterozygous genotype in malaria-prone regions allowed their natural selection. This increased the frequency of allele for the sickle cell anemia in the gene pool of the local population and increased the frequency of heterozygous dominant genotype.

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Which molecules help to show movement of substances through the cell membranes
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D. Proteins help control substances by making trans-membrane channels.



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