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3 years ago

In his study of pea plants, Gregor Mendel used which method to produce offspring?

Biology

1 answer:

Ivanshal [37]3 years ago

4 0

Gregor Mendel used Cross-pollination method to produce offspring.

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14. what are the genotypes of the brown and yellow labs who have all black puppies? show all your work using punnett squares.

Varvara68 [4.7K]

There are two different genotypes of brown labs and three different genotypes of yellow labs (eeBB, eeBb, and eebb) (Eebb and EEbb).

Let's examine genotypes, a different table now: As a result, a brown or yellow lab couple can have both brown labs and black or yellow labs.In actuality, neither brown nor chocolate dogs are permitted. Only yellow puppies can ever be born to a yellow lab couple. Even stranger, two brown labs can have yellow or brown puppies, whereas two black labs can have yellow or black puppies. Only yellow labs are capable of independently producing several shades of colour.

Learn more about genotypes by using this link:

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1 year ago

What is synthesized from the DNA template? This is used to assemble ______ into ______.

Vladimir79 [104]

Answer:
The right option for blanks is mRNA, amino acids and polypeptide chain (protein).

Reason:
During protein synthesis first of all mRNA formation occurs from DNA template. Then mRNA come out from nucleus into cytoplasm and bind with ribosome, where tRNA come and binds to mRNA codon with the help of anticodons. and add amino acids. In this way a chain of polypeptide is formed.

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3 years ago

Which letter correctly identifies telophase

slava [35]

The word phase means to change a part of a development

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3 years ago

Read 2 more answers

What are the next two terms in the sequence? O, T, T,<br> F, F, S, S,E

Varvara68 [4.7K]

Janashshshajsshsjusshshshdhshshdh

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3 years ago

1. Suppose the synthesis of an amino acid was accomplished by four enzymes encoded by four genes that formed an operon. Draw a m

vivado [14]

I have attached lac operon model having 4 genes. See attachment for better understanding.

Answer:

The Lac operon is controlled by two signals.

Initiation

Glucose and lactose concentrations control the initiation of transcription of the Lac operon through their effects on the Lac repressor protein and Cap.

Lactose absent (Repression)

When lactose is absent, the Lac repressor binds the Lac operator and shuts off expression of the operon.

Lactose present (Transcription)

Addition of lactose increases the intracellular concentration of a related compound, allolactose. allolactose binds to the Lac repressor, causing it to undergo a conformational change that releases its grip on the operator DNa.

Glucose absent (Repression)

When glucose is absent, cyclic aMp (red triangle) is produced by the cell and Cap binds to DNA.

Glucose present (Transcription)

LacZ, the first gene of the operon, encodes the enzyme b-galactosidase, which breaks down lactose to galactose and glucose.

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3 years ago