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3 years ago

Yasmine is asked to describe the structural organization of chloroplasts. She writes the following sentence:

Biology

1 answer:

julia-pushkina [17]3 years ago

5 0

Answer:

<u>C. Exchange the positions of "stroma" and "grana."</u>

"A chloroplast contains thylakoid stacks, called<u> grana</u>, that are surrounded by fluid-filled <u>stroma</u>."

Explanation:

A dynamic biochemical process, photosynthesis, occurs within the chloroplasts of plants. Here, to form stable carbohydrates, light energy is transformed into chemical energy.

6 CO2 + 6 H2O + light → C6H12O6 + 6 O2

Carbon Dioxide + Water + Light Glucose + Oxygen

Chloroplasts are tiny, highly-folded, membrane-bounded organelles containing enzymes, pigments and other molecules that mediate photosynthesis. In the stack of grana, pigments like chlorophyll, absorb light energy for the light-dependent reactions.

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In horses, black color(B) dominates chestnut color(b). The trotting gait(T) dominates the pacing gait (t). A cross is made betwe

bulgar [2K]

Answer:

<h2>a. BbTt;</h2><h2>b. BbTt X BbTt ;</h2><h2> Parent 1: BT bt Bt bT </h2><h2> Parent 2: BT bt Bt bT ;</h2><h2>c. BBTT , BbTt , BBTt , BbTT , BbTt , BbTt , BBTt , BbTT , BBTt , Bbtt , BBtt , BbTt , BbTT , bbTt , BbTt , bbTT.</h2><h2> d. 12:1:1:2</h2>

Explanation:

As given Block color is dominant over chesnut color, so B is dominant over b.

Chestnut color=bb ;

Trotting gait is dominant over pacing gait, so T is dominant over t .

Pacing gait=tt

Now; cross between

(a) homozygous black, pacing gait is= BBtt; and horse homozygous for chestnut color, trotting gait is= bbTT

BBtt x bbTT

gametes are ; Bt and bT,

Progeny are BbTt, BbTt,

All progeny will be BbTt heterozygous Black color and heterozygous trotting gait

b. a cross is made between two horses, both of who are heterozygous black trotter = BbTt X BbTt

Possible gametes of each parent are;

Parent 1: BT bt Bt bT

Parent 2: BT bt Bt bT

c. Punnett square and all the possible gene combinations that results are;

Cross between these gametes

BT bt Bt bT

possible gene combinations ; BBTT , BbTt , BBTt , BbTT , BbTt , BbTt , BBTt , BbTT , BBTt , Bbtt , BBtt , BbTt , BbTT , bbTt , BbTt , bbTT.

d. expected phenotype ration of the offspring.

Black color and trotting gait horse 12: chestnut and trotting gait horse 1: Black color pacing gait horse 1: chestnut and trotting gait horse 2.

so 12:1:1:2

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4 years ago

According to the text, what is the most important prenatal phase of development for organ formation

snow_tiger [21]

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3 years ago

A difference between an acute disease and chronic disease is that chronic diseases have an extended period of __________.

Korvikt [17]

Answer:

extended period of 3mos. or more

Explanation:

chronic diseases such as diabetes, means u will have this disease 4 the rest of your life. whereas, acute, means temporary, corrected by antibiotic meds.

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4 years ago

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