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3 years ago

Can cause spontaneous abortion or stillbirth because the bacteria can cross the placenta and infect the fetus.

Biology

1 answer:

romanna [79]3 years ago

5 0

Clostridium perfringens and Salmonella

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What element from the periodic table has the highest monetary value per unit

fenix001 [56]

Answer:

francium

Explanation:

The most expensive natural element is francium, but it decays so quickly it can't be collected to be sold.

4 0

2 years ago

Doug plants a few peas. After two days, he sees the shoot and the root forming. He observes that the shoot grows upward, toward

UkoKoshka [18]

I would say B) The shoot is positively phototropic and negatively gravitropic; the root is positively gravitropic and negatively phototropic.

This is because the shoot of the plant is attracted towards the sun, as the chloroplasts in the leaves need sunlight to make food. As well, the roots are attracted downward to absorb more water and minerals from the sun.

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2 years ago

Now consider a single base mutation in a codon for leucine that creates a codon for phenylalanine. A true reversion changes the

madam [21]

Answer:

options A, B, D and E

Explanation:

leucine codons include: UUA, UUG, CUU, CUC, CUA, CUG

phenylalanine codons include: UUU, UUC.

CUU

replace C with U to give

UUU phenylalanine codon

replace underlined with A

UUA leucine codon

CUC

replace underlined with U

UUC phenylalanine codon

replace underlined with A or G

UUA, UUG leucine codons

UUG

replace underlined with U

UUU phenylalanine codons

replace underlined with C

CUU leucine codon

UUA

replace underlined with U or C

UUU or UUC phenylalanine codons

replace U with C

CUU or CUC leucine codons

7 0

2 years ago

What is the starting material in transcription?

DanielleElmas [232]

Answer:To begin with, initial transcription components include DNA, RNA polymerase core enzyme, and the σ subunit. Translation components include mRNA, small and large ribosomal subunits, initiation factors, elongation factors and tRNA.

Explanation:

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2 years ago

________ are enzyme used to position nucleotides during dna replication.

aivan3 [116]

Answer:

DNA polymerase

Explanation:

DNA polymerase is the enzyme that matches and lays down nucleotides to build the daughter DNA strand along each parent DNA strand.

5 0

3 years ago