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3 years ago

Which of these help in the asexual reproduction of black bread mold? a)zygospores b)ascospores c)basidiospores

1 answer:

5 0

"Zygospores" is the one choice among all the choices given in the question that helps in the asexual reproduction of black bread mold. The correct option among all the options that are given in the question is the first option or option "a". I hope that this answer has come to your help.

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Arte-miy333 [17]

Assuming diallelic genes, that express complete dominance, and assort independently, 1) Genotypic ratio=1:2:1. Phenotypic ratio=3:1 / 2) Parental genotype: PpRr. Gametes= PR, Pr, pR, pr. Phenotypic ratio: 9:3:3:1

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We will assume diallelic genes that express complete dominance. In cases where two or more genes are involved, we will assume they are not linked, and alleles assort independently.

1) FRECKLES

F is the dominant allele that codes for freckles

f is the recessive allele that codes for no-freckles

Cross: Between a mother and a father who both have freckles and are heter0zyg0us for the trait

Parentals) Ff x Ff

Gametes) F f F f

Punnett square) F f

F FF Ff

f Ff ff

F1) Genotype

1/4 = 25% of the progeny is expected to be h0m0zyg0us dominant, FF

2/4 = 1/2 = 50% of the progeny is expected to be heter0zyg0us, Ff

1/4 = 25% of the progeny is expected to be h0m0zyg0us recessive, ff

Phenotype

3/4 = 75% of the progeny is expected to express freckles, FF + Ff

1/4 = 25% of the progeny is expected to not express freckles, ff

Genotypic ratio ⇒ 1:2:1

Phenotypic ratio ⇒ 3:1

2) FLOWER COLOR AND SEED SHAPE

P is the dominant allele that codes for purple flowers

p is the recessive allele that codes for white flowers

R is the dominant allele that codes for round seeds

r is the recessive allele that codes for wrinkled seeds

Cross: Between two plants that are heter0zyg0us for flower color and seed shape

Parentals) PpRr x PpRr

Gametes) PR, Pr, pR, pr PR, Pr, pR, pr

Punnett square) PR Pr pR pr

PR PPRR PPRr PpRR PpRr

Pr PPRr PPrr PpRr Pprr

pR PpRR PpRr ppRR ppRr

pr PpRr Pprr ppRr pprr

F1) Genotype

1/16 individuals are expected to be PPRR

2/16 individuals are expected to be PPRr

1/16 individuals are expected to be PPrr

2/16 individuals are expected to be PpRR

4/16 individuals are expected to be PpRr

2/16 individuals are expected to be Pprr

1/16 individuals are expected to be ppRR

2/16 individuals are expected to be ppRr

1/16 individuals are expected to be pprr

Phenotype

9/16 individuals are expected to have purple flowers with round seeds, PPRR + PpRR + PPRr + PpRr

3/16 individuals are expected to have purple flowers and wrinckled seeds, PPrr + Pprr

3/16 individuals are expected to have white flowers and round seeds, ppRR + ppRr

1/16 individuals are expeceted to have white flowers and wrinckled seeds, pprr.

Phenotypic ratio ⇒ 9:3:3:1

Genotype of parent plant 1: PpRr

Gamete 1: PR
Gamete 2: Pr
Gamete 3: pR
Gamete 4: pr

Genotype of parent plant 2: PpRr

Gamete 1: PR
Gamete 2: Pr
Gamete 3: pR
Gamete 4: pr

 PHENOTYPE GENOTYPE 

purple flowers, round seeds: PPRR, PpRR, PPRr, PpRr

purple flowers, wrinkled seeds: PPrr, Pprr

white flowers, round seeds: ppRR, ppRr

white flowers, wrinkled seeds: pprr

 PHENOTYPE NUMBER 

purple flowers, round seeds: 9

purple flowers, wrinkled seeds: 3

white flowers, round seeds: 3

white flowers, wrinkled seeds: 1

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You can learn more about monohybrid and dihybrid crosses at

brainly.com/question/1185199?referrer=searchResults

brainly.com/question/24076691?referrer=searchResults

brainly.com/question/2669862?referrer=searchResults

4 0

3 years ago

THIS MAY NOT BE BIOLOGY!!!

Anon25 [30]

The answer that is not caused by a gravitational pull is two atoms come together to form a molecule because atoms form molecules because of the electrons, and not gravitational pull.

Therefore the correct answer would be,

Two atoms come together to form a molecule.

I hope that this has satisfied you.

4 0

3 years ago

What is a bacterial infection common to older adults in hospitals or long-term care facilities, typically following the use of a

natita [175]

Answer:

Clostridium difficile is the most common bacterial infection that affects the elderly in long-term care facilities following the use of antibiotics.

Explanation:

Clostridium difficile are pathogens that affect the large intestine and cause diarrhea. The infection can become life-threatening if left unattended. The Clostridium difficile spread by touching various surfaces, food, objects, etc that have been contaminated by the feces of an infected person.

Normally humans have resistance to such bacterial pathogens and various microbes in the body compete against Clostridium difficile. But when the person has been consuming antibiotics such beneficial bacteria or competitors of Clostridium difficile are killed which allows them to attack and infect the person when they stop consuming antibiotics.

Note: Your question appears to be incomplete, but most probably it should have been “What is a bacterial infection common to older adults in hospitals or long-term care facilities, typically following the use of antibiotics that wipe out competing bacteria. It causes diarrhea and can lead to inflammation of the colon.”

Learn more about clostridium difficile here:

brainly.com/question/13552507

#SPJ4

5 0

2 years ago

1. People with diabetes tend to suffer from extreme thirst and frequent urination. These symptoms are signs that the body is not

jolli1 [7]

Answer:

The bloodstream carries glucose a type of sugar produced from the digestion of carbohydrates and other foods-to provide energy to cells throughout the body

Explanation:

6 0

3 years ago

Why cant we cure diabetes yet?

Olin [163]

Basically, we don't have the right advancements in technology to replace organs yet.

6 0

4 years ago

Read 2 more answers