TTU Biology 1401 Held Test 2 Exam
Questions & Answers (Grade A+)
-single stranded
-bases are A,U,C,G
-sugar is ribose
-short
-messenger of genetic information -
correct answer ✅RNA
structure in the cell that has RNA and protein; site of protein
synthesis in the cytoplasm -
correct answer ✅ribosome
make sperm through meiosis -
correct answer ✅spermatogenic cells
promotes uterine lining growth (made in ovaries) -
correct answer ✅progesterone
combination of 3 "letters" (nucleotides); word of genetic code -
correct answer ✅codon
,TTU Biology 1401 Held Test 2 Exam
Questions & Answers (Grade A+)
caused by an extra copy of chromosome 21 (trisomy 21) -
correct answer ✅Down Syndrome
how sex-linked (X-chromosome) genes are passed from mother to
son -
correct answer ✅criss-cross inheritance
3 bases correspond with 1 amino acid -
correct answer ✅triplet code
inner layer of gastrula; forms digestive track (stomach intestine
liver) -
correct answer ✅endoderm
mating between an individual of unknown genotype with a
homozygous recessive -
correct answer ✅testcross
females, between uterus and opening; serves as birth canal -
correct answer ✅vagina
,TTU Biology 1401 Held Test 2 Exam
Questions & Answers (Grade A+)
offspring of F1 generation; F2 for "second filial"; when F1 plants
self-fertilize or fertilize each other (the offspring of F1) -
correct answer ✅F2 generation
the spread of cancer beyond their original site -
correct answer ✅metastasis
a diagram that shows the possible combinations of alleles that
could occur when gametes combine (can show proportions of
combinations) -
correct answer ✅punnett square
when introns are removed from RNA and exons are joined
together; RNA to mRNA -
correct answer ✅splicing
one unit of operation in regulation -
correct answer ✅operon
cluster of cells that surround a developing egg in the ovary; secrete
estrogen -
correct answer ✅follicle
, TTU Biology 1401 Held Test 2 Exam
Questions & Answers (Grade A+)
base substitution which converts one amino acid into another -
correct answer ✅missense mutation
mating of individuals differing in a single characteristic (Crossing PP
with pp) -
correct answer ✅monohybrid cross
a trick for equalizing the "dose" of X genes in XX vs. XY individuals -
correct answer ✅dosage compensation
the alternative versions of a gene that account for variations in
inherited characteristics -
correct answer ✅allele
-restriction fragment length polymorphism
-variation in the length of restriction fragment (serve as genetic
markers for particular loci) -
correct answer ✅RFLP's
-repetition of part of a chromosome resulting from fusion with a
fragment from a homologous chromosome
Questions & Answers (Grade A+)
-single stranded
-bases are A,U,C,G
-sugar is ribose
-short
-messenger of genetic information -
correct answer ✅RNA
structure in the cell that has RNA and protein; site of protein
synthesis in the cytoplasm -
correct answer ✅ribosome
make sperm through meiosis -
correct answer ✅spermatogenic cells
promotes uterine lining growth (made in ovaries) -
correct answer ✅progesterone
combination of 3 "letters" (nucleotides); word of genetic code -
correct answer ✅codon
,TTU Biology 1401 Held Test 2 Exam
Questions & Answers (Grade A+)
caused by an extra copy of chromosome 21 (trisomy 21) -
correct answer ✅Down Syndrome
how sex-linked (X-chromosome) genes are passed from mother to
son -
correct answer ✅criss-cross inheritance
3 bases correspond with 1 amino acid -
correct answer ✅triplet code
inner layer of gastrula; forms digestive track (stomach intestine
liver) -
correct answer ✅endoderm
mating between an individual of unknown genotype with a
homozygous recessive -
correct answer ✅testcross
females, between uterus and opening; serves as birth canal -
correct answer ✅vagina
,TTU Biology 1401 Held Test 2 Exam
Questions & Answers (Grade A+)
offspring of F1 generation; F2 for "second filial"; when F1 plants
self-fertilize or fertilize each other (the offspring of F1) -
correct answer ✅F2 generation
the spread of cancer beyond their original site -
correct answer ✅metastasis
a diagram that shows the possible combinations of alleles that
could occur when gametes combine (can show proportions of
combinations) -
correct answer ✅punnett square
when introns are removed from RNA and exons are joined
together; RNA to mRNA -
correct answer ✅splicing
one unit of operation in regulation -
correct answer ✅operon
cluster of cells that surround a developing egg in the ovary; secrete
estrogen -
correct answer ✅follicle
, TTU Biology 1401 Held Test 2 Exam
Questions & Answers (Grade A+)
base substitution which converts one amino acid into another -
correct answer ✅missense mutation
mating of individuals differing in a single characteristic (Crossing PP
with pp) -
correct answer ✅monohybrid cross
a trick for equalizing the "dose" of X genes in XX vs. XY individuals -
correct answer ✅dosage compensation
the alternative versions of a gene that account for variations in
inherited characteristics -
correct answer ✅allele
-restriction fragment length polymorphism
-variation in the length of restriction fragment (serve as genetic
markers for particular loci) -
correct answer ✅RFLP's
-repetition of part of a chromosome resulting from fusion with a
fragment from a homologous chromosome
