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astra-53 [7]
3 years ago
5

WILL GIVE BRAINLIEST!!

Biology
1 answer:
Natali [406]3 years ago
7 0

Answer:

E) exercising

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This is one possible cross (above) for the X-linked condition known as hemophilia. Which pair of parents is most likely to have
gtnhenbr [62]

Answer:

The options:

A. A hemophiliac mother and an unaffected father

B. A carrier mother and an unaffected father

C. A carrier mother and a hemophiliac father

D. An unaffected, non-carrier mother and a hemophiliac father

The CORRECT ANSWER IS C.

C. A carrier mother and a hemophiliac father

Explanation:

Hemophilia is known to be a recessive disorder, a woman would need to have two disease alleles (positioned on both X chromosome) for the disease to be expressed. Therefore, she would need to possess the disease allele from both parents (mother and father).

Hemophilia is an X-linked disorder, and it is hemizygous for male in terms of the hemophilia-related gene (with only a singular allele and express the phenotype linked with the allele). For the hemophilia allele to be inherited in an offspring, the male has to be hemophiliac.

Pairs of parents without a hemophiliac male would not have a hemophiliac daughter, excluding rare conditions (spontaneous mutations occuring in the germline or at growth and maturation of the embryo).

A homozygous woman for this condition (is hemophiliac) or heterozygous woman for the allele in consideration (is an unaffected carriers) could transfer a hemophilia allele to her offspring.

Pairs of parents that without a hemophiliac female or hemophiliac carrier would not yield a hemophiliac daughter (with the exclusion of rare spontaneous mutation situations).

Of the pairs above, a carrier mother and a hemophiliac father would most probably produce a hemophiliac daughter.

4 0
3 years ago
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What is the ability of a cell membrane to alow materia to pass through is called
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Answer:

Structure and function of the cell membrane

The cell membrane is semipermeable (or selectively permeable). ... The unique structure of the cell membrane allows small substances (like oxygen or carbon dioxide) to easily pass through.

Explanation:

6 0
3 years ago
What is lectin pathway​
Alex

Answer:

The lectin pathway or lectin complement pathway is a type of cascade reaction in the complement system, similar in structure to the classical complement pathway, in that, after activation, it proceeds through the action of C4 and C2 to produce activated complement proteins further down the cascade.

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Why do you think we have different Biomes in the
Novosadov [1.4K]

Answer:

Each biome has a unique set of environmental conditions and plants and animals that have adapted to those conditions. The major land biomes have names like tropical rainforest, grasslands, desert, temperate deciduous forest, taiga (also called coniferous or boreal forest), and tundra.

Explanation:

A biome is different from an ecosystem. An ecosystem is the interaction of living and nonliving things in an environment. A biome is a specific geographic area notable for the species living there. A biome can be made up of many ecosystems. For example, an aquatic biome can contain ecosystems such as coral reefs and kelp forests.

5 0
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Hi I want to make sure this is right, I have a doubt on the last answer too. thank you
Alex787 [66]

Answer:

this is correct

Explanation:

because the energy gets transferred from one animal to another

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