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3 years ago

Show how two phenotypically normal parents can produce a male child with color-blindness.

Biology

1 answer:

Ronch [10]3 years ago

6 0

Answer:

The female (XcX) is carrier for color blindness while the male (XY) is normal. The carrier female transmits its one X chromosome with gene for color blindness to one of her sons making him color blind.

Explanation:

Color blindness is X linked recessive disorder and followed the criss-cross inheritance wherein the color blind sons get the gene from their carrier/affected mother while the color blind father would transmit the gene to his daughters along with X chromosome.

Since both the parents are normal, the mother (XcX) should be carrier for the disease to get the color blind son. A cross between carrier mother (XcX) and normal father (XY) would make 50% of their sons color blind.

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What is a likely advantage of having a multicellular body that consists of fine filaments (hyphae)?

Naddika [18.5K]

Hyphae are a filamentous vegetative structure of some fungi and a large network of hyphae form a mycelium (vegetative body). Mycelium is actually mass of branched, tubular hyphae. Because of its structure, hyphae enable the fungi structural strength (it is composed of at least one cell encapsulated by a protective cell wall usually made of chitin). The combination of branching hyphae with their radial/diffuse growth is a huge advantage for mycelium that can explore and exploit a large area. Also, hyphae and their organisation (diffuse or radial growth) have a role in the absorptive nutrition of the fungi. For example, parasitic fungi have specialized hyphae with tips, haustoria, which penetrate the host organisms or symbiotic fungi that have specialized hyphae, arbuscules, which can be found in the roots of vascular plants.

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3 years ago

12. Which is NOT a natural cause of extinction?

sveticcg [70]

Answer:

12.B

17. A

11. C

13. B

16. A

7. B

8. B

19. D

23. B

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3 years ago

The energy acquired in photosynthesis is used to make glucose. Where is the glucose made in plants?

klio [65]

Explanation:

in the stroma

Photosynthesis produces glucose and O2 from inorganic CO2, light energy and water.

6CO2 + 6H20 + (energy) → C6H12O6 + 6O2

Further Explanation:

Photosynthesis is a chemical pathway that’s integral to producing energy in plants and other primary producers. Energy in the form of molecules of glucose is produced from light, water and carbon dioxide while oxygen is released. This occurs in several complex steps, photosynthesis is a rate limited reaction, depends on several factors including carbon dioxide concentration, ambient temperature and light intensity; the energy is retrieved from photons, I.e. particles of light, and water is used as a reducing agent. This occurs in the thykaloids, where pigment molecules like chlorophyll reside.

Occuring in several complex steps, photosynthesis is a rate limited reaction, depends on several factors including carbon dioxide concentration, ambient temperature and light intensity; the energy is retrieved from photons, I.e. particles of light, and water is used as a reducing agent. Water supplies the chlorophyll in plant cell with replacement electrons for the ones removed from photosystem II.

Additionally,

water (H2O) split by light during photolysis into H+ and OH- acts as a source of oxygen along with functioning as a reducing agent; it reduces the molecule NADP to NADPH by providing H+ ions and produces molecules of the energy storage molecule ATP through an electron transport chain.
This occurs in the thykaloids, where pigment molecules like chlorophyll reside.
Later, in dark reactions, NADP and NADPH are used in the Calvin cycle where monosaccharides or sugars like glucose are produced after the modification of several molecules in the stroma. These store energy in their bonds, which can be released in respiration in the mitochondria.

Learn more about photosynthesis at brainly.com/question/4216541

Learn more about cellular respiration at brainly.com/question/11203046

Learn more about cellular life at brainly.com/question/11259903

#LearnWithBrainly

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3 years ago

An earthworm's digestive system has a pharynx, crop, gizzard, and intestine true or false?

Hoochie [10]

I think the answer is true

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4 years ago

Sakiko was was a __________, so she was interested in microsociology. functionalist symbolic interactionist structuralist confli

attashe74 [19]

Answer:

.... symbolic interactionist

Explanation:

A symbolic interactionist is a sociologist whose approach to the study of the society emphasizes ways in which society is actively shaped by individuals and the meanings they attach to 'everyday things'.

It key concepts about the society includes;

• Defining the society as the web of social relationships that humans create.

It involves the individual categorizing influences as;

- Particular Others (Individuals who are significant to us)

- Generalized Other (The attitude or viewpoint of the larger group)

Sasiko explores these perspectives through studying social interactions and cultures in different contexts.

5 0

3 years ago