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Paul [167]
4 years ago
12

·four valence electrons ·can form rings and/or chains ·unique chemical bonding properties ·forms covalent bonds with numerous el

ements Some of the characteristics of _________ are listed. These characteristics result in the formation of millions of organic compounds, many of which are synthesized and found within cells. A) carbon B) hydrogen C) oxygen D) water Eliminat
Biology
1 answer:
nydimaria [60]4 years ago
3 0
Carbon. The easiest way to answer this is to look at a periodic table and single out the only element that has four valence electrons.
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Two dihybrid pea plants (both tall and with purple flowers) are mated. The cross resulted in 9866 progeny, of which 5550 were ta
d1i1m1o1n [39]

Answer:

<h2>616 Short with white flower </h2><h2>1850 Tall with white flower </h2><h2>1850 Short with purple flower</h2>

Explanation:

A dihybrid cross is in which two genes of two different traits are crossed

As given, two dihybrid pea plants (tall with purple flower) are mated, resulting 5550 out of 9866 were tall with purple.

T= tall  

t= short,

P= purple,

p= white;

So genotype of parents are TtPp ; T is dominant over t, P is dominant over p.

Crossing between two parens=  TtPp ×  TtPp

so gamets are  = parent 1: TP, Tp, tP, tp and parent 2: TP, Tp, tP, tp

Hence the four different gametes formed.

Now arrange the gametes on the top and left side of a Punnett square it'll genotypically results into different combinations, by which phenotypic ratios can be calculated.

offspring are = TTPP, TTPp, TtPP, TtPp....................TTpp, Ttpp.....ttPP, ttPp.......ttpp

(T_P_)= Tall with purple flower,

(T_pp)= tall with white  flower,

(ttP_)= short with purple  flower,

(ttpp)= short with white  flower.

so it show  12:3:3:1 ratio'

Phenotypic classes are:

616 Short with white flower

1850 Tall with white flower

1850 Short with purple flower

8 0
3 years ago
Why do earthquakes occur along the San Andreas Fault?
Zepler [3.9K]

Answer:

I would say that the answer is A

Explanation:

Sorry if I get it wrong

4 0
3 years ago
Read 2 more answers
a book setting on a shelf two meters from the floor has more kinetic energy than a book sitting on a shelf one meter from the fl
r-ruslan [8.4K]

True

Explanation:

Its true because the book closer to the ground requires less energy to keep it pulled towards the earth, since its closer

6 0
3 years ago
85. (1) A ribozyme is a catalytic protein that assists in the processing of tRNA.
Nat2105 [25]
TRUE.
<span>
A </span>ribozyme<span> is a ribonucleic acid (RNA) enzyme that catalyzes a chemical reaction. The </span>ribozyme<span> catalyses specific reactions in a similar way to that of protein enzymes. Also called catalytic RNA, </span>ribozymes<span> are found in the ribosome where they join amino acids together to form protein chains.
</span>

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
4 0
3 years ago
Capillaries that have a perforated lining are called__________.
blagie [28]
C. Fenestrated capillaries have intracellular perforations.
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